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FINAL REPORT
REPUBLIC OF BOTSWANA MINISTRY OF WORKS AND COMWUNICATIONS
BOTSWANA - ZAMBIA ROAD PROJECT AID LOAN NO 69o-T001
NATA - KAZUNGU-A I(OAD PANDAMATENGA ACCESS ROAD CHOBE RIVER BY - PASS ROAD
JULY 1978
Iq
TA S TIPPET-m-S-ABBETT-MCCARFHY -STRATTON ENGINIEERSAND ARCHITECTS NEW YORK GABORONE
FINAL REPORT
REPUBLIC OF BOTSWANA MINISTRY OF WORKS AND COMMUNICATIONS
BOTSWANA -ZAMBIA ROAD PROJECT AID LOAN NO 690-H-001
NATA - KAZUNGULA ROAD PANDAMATENGA ACCESS ROAD
CHOBE RIVER BY - PASS ROAD
JULY 1978
TAMS TIPPETTS-ABB ETT-McCARTHY-STRATTON
ENGINEERS AND ARCHITECTS NEW YORK GABORONE
TABLEOF CONTENTS
PAGE
I INTRODUCTION I A DESCRIPTION OF PROJECT 1 B FUNDING 2 C CONTRACTUAL ARRANGEMENTS 2 D MODIFICATIONS OF CONTRACT 2
II STAFFING 4
III TRAINING 4
IV CONSTRUCTION EQUIPMENT 4
V MATERIALS UTILIZED 5 A SOILS 5 B WATER 5
VI PROTECT HISTORY 5 A GENERAL 5 B SEQUENCE OF EVENTS 6 C PROJECT SCHEDULING AND DELAYS 9 D REMEDIAL ACTION 11 E PICTORIAL HISTORY 11
VII FINANCIAL SUMMARY 12
APPENDICES A CONSTRUCTION EQUIPMENT B SOILS AND MATERIALS C WATER WELL LOCATIONS D SYNOPSIS OF KEY CORRESPONDENCE E PROJECT PHOTOGRAPHS
LIST OF FIGURES
FIG 1 LOCATION MAP
FIG 2 CONSTRUCTION PROGRESS CHART
FIG B-i THRU B-4 MATERIALS UTILIZATION DIAGRAMS
FIG B-5 THRU B-13 AVERAGE GRADATION CURVES
UNITED STATES GOVERNMENT INSTRUCTIONS
Subject
2- a emo Final Report Botswana -Zambia Road Project
use routing symbols whenever possible
SENDER Use brief informal language Conserve space Forward original and one copy
RECEIVER Reply below the message keep one
copy return one copy
DATE OF MESSAGE Routing Symbol
TO
4 fiSENGR CampRSC No 8 Rm -507 SA-11I AID Washington DC 20523a
kl7
= dTUei
TITLE OF-ORIGINATO~R-D0
-FOLD-INITIAL MESSAGE
Chief Engineer Hl)S0 -FOLD--
Enclosed please Road Project
find 8 copies of the Final Report on Botswana - Zambia
REPLY MESSAGE
DATE OF REPLY Routing Symbol
From fDanald W Reilly USA=h to Kenya
PO Box 30261 Nairobi Kenya
101878 SIGNATURE OF REPLIER
Palmer Stearns
TITLE OF REPLIER
DSENGR
5027-104 1 TO BE RETAINED BY ADDRESSEE
Civil Engineer OPTIONAL FORM 27
JULY 1973 GSA FPMR (41 CFR) 101-116
3m ZAMBIA
I ANGOLA GULN - KASANEI
IGOI THE PROJECT
APANIDAMATENGA
R ES8A
BOSA AZAMIATR
B 0 T S A N APO
SERULI SELIBI
LEPXEPE AIG R 1ATINS DRIFT
TSHANER EP 0O F
MOLEPOLOLE
W bull PLOBATSE
l--
TSMABON
AMATuLASA LEGEND
PROJECT ROAD
bull MAIN ROADS -MAIN FEEDER ROADS
SECONDARY ROADS
-= --
BOTSWANA -ZAMBIA LOCATION MAP
FIGURE 1
ROAD
I INTRODUCTION
This is the final report on the construction of the Botswana-Zambia
Highway Project accomplished between April 25 1976 and January 19 1977
The report has been prepared in accordance with Guidelines for Preparing
Final Report dated September 30 1963 as issued by United States Agency for
International Development
A DESCRIPTION OF PROJECT
The Project consists of three sections of all-weather two-lane highshy
way with a total length of 370 kilometers including
1) The Nata-Kazungula section approximately 300 kilometers
in length beginning at Nata (See Figure 1) on the Francistown
Nata road and extending north west to the existing ferry cross shy
ing to Zambia on the Zambezi River at Kazungula
2) The Chobe River By-Pass section approximately 65 kilometers
in length beginning near Kazungula at Kilometer 2973 on the
Nata-Kazungula highway and extending south west skirting
the town of Kasane through the Chobe National Park to the
bridge across the Chobe River at Ngoma
3) The Pandamatena Access Road 5 kilometers in length
beginning at approximately Kilometer 198 on the Nata-Kazungula
highway and extending east to the village of Pandamatenga
on the Botswana-Rhodesia border
Construction work included clearing and grubbing of 1392 hectares
earthwork of approximately 1120000 cubic meters 3400 meters of culvert
1538800 cubic meters of base course and 457200 cubic meters of surface
course
The project design was performed under an agreement dated June 15
1971 for professional services between the Government of the Republic of
Botswana and Tippetts-Abbett-McCarthy-Stratton of New York U S A
-1shy
B FUNDING
Funds for construction and construction supervision of the Project
were provided by loan agreements between the Government of the Republic of
Botswana and the United States of America acting through the Agency for
International Development (AID) The funds allocated were in the amount
of US $16600000 and were derived from the following sources
-U S $12600000 AID Loan No 690-H-001
-U S $ 4000000 First Amendment No 690-H-001A
C CONTRACTUAL ARRANGEMENTS
A contract for construction of the Botswana-Zambia Highway Project
was signed on Tune 26 1973 between the Government of the Republic of Botswana
and Grove International Corporation and Grove Shepherd Wilson and Kruge Inc
a joint venture for an estimated total cost of construction of US $897784200
and Rand 316082500 The contract provided for completion of the project
by April 25 1976 a 975 day period from Notice to Proceed given on August 22
1973
There were two amendments to the contract both dealing with the condishy
tions and limits for Off-Shelf purchases
A contract for supervision of construction was entered into by the Government
of the Republic of Botswana and Tippetts -Abbett-McCarthy-Stratton (TAMS) in
the form of a supplement to the basic agreement for design of the project The
supplemental agreement was dated July 2 1973 Two amendments the first
dated September 29 1976 and the second dated July 26 1977 extended the
the time for completion and modified the original estimate for cost of inspection
services
D MODIFICATIONS OF CONTR4tCT
During the course of construction twelve Change Orders approved
and signed by the Government were issued These orders are briefly described
in Table 1
-2shy
5307
TABLE 1 CHANGE ORDERS
Change Order Cost No Purpose US$ RandPula
1 Hotel rentals for Engineers staff while awaiting completion of housing units 842138
2 Additional air-conditioning units for staff housing 376898
3 Arrangements for monthly advance progress payments for permanent materials on site shy
4 Addition to the number of TAMS staff housing units 3900000 780600
5 For escalation of POL costs between 11 November 1973 and 11 February 1974 575601
6 For additional escalation of POL costs between 11 February 1974 and 14 May 1974 1815344
7 For additional escalation of POL costs between 14 May 1974 and 19 July 1974 77277517
LESS OVERPAYMENT (-)1661539
8 Interim allowance by GOB authorization to all employees to maximum rate of R500 per month between April 1973 and March 1974 297802
9 Escalation of minimum wage rates for field personnel 16022556
LESS OVERPAYMENT (-)125720
10 Reduction InRoad Reserve clearing on Costs included in Chobe By-Pass Road amounts in pay
items 302 303 and 304
11 For increase in mobilization costs to Costs included in cover importation of additional compaction amounts in equipment pay item 101
12 For minor realignment of roadway at Costs included in Nata contract pay items
TOTALS 4276898 95829606
-3shy
II STAFFING Excluding the mobilization and demobilization periods the major conshy
struction efforts took place during the calendar years 1974 1975 and 1976
A summary of the project staffing is presented in Table 2
TABLE 2
AverageMaximum Staffing Levels
Contractors Staff Engineers Staff
YearSource US Botswana TCN Code 941 US Botswana TCN
1974 17 232 2 22 4 11 9 1975 18 302 3 43 4 12 9
1976 15 290 3 40 4 13 7
Maximum 20 359 5 49 4 14 9
A paving specialist visited the Project in December 1973 and une 1974
in connection with proposals for upgrading the Project and again in March 1975
in connection with selection of material for the surface course
A partner from the Consultants home office made periodic visits to the
Project sites
III TRAINING
The Contractor trained Botswana Staff as drivers equipment operators
and oilers surveyors soils technicians mechanics helpers stewards and
maintenance workers
The Engineer trained Botswana Staff as soils technicians surveyors
drivers draftsmen and office clerical workers
IV CONSTRUCTION EQUIPMENT
In compliance with a requirement of the Contract Documents the Conshy
tractor presented a schedule of major plant and equipment to be used on the
Project Some adjustments were made to the listing as the job progressed
-4shy
Advances for the purchase of new items (materials construction plant
equipment tools spare parts maintenance supplies and buildings furniture
and equipment for the Contractors and Engineers camps) totaling U S
$124443700 and local currency Rand 225000 were made available to the
Contractor as provided for by the Contract Documents Reimbursement of
these advances were made in January1974 in accordance with the Contract
requirements
The major items of construction and shop equipment imported by the
Contractor for use on the project are listed in Appendix A
V MATERIALS UTILIZED
A SOILS
The formation consists of two layers the surface and base courses
placed on a compacted subgrade or embankment Base course materials were
obtained from 123 borrow pits along the roadway Surface course materials
which required processing were obtained from 9 borrow areas Appendix B
contains the Material Utilization Diagrams which show the sources of these
borrow materials and their utilization along the road Also included in Appendix
B are the Average Gradation Curves of the processed surface course materials
B WATER
Water for construction was obtained from 24 water wells drilled by the
Contractor Appendix C contains information on locations depth and yields
of the wells
VI PROTECT HISTORY
A GENERAL The engineers inspectors and materials technicians employed by TAMS
systematically inspected construction operations and sampled and tested mashy
terials being incorporated in the work to ensure compliance with contract reshy
quirements Each month a determination was made of the work accomplished
-5shy
and eligible for payments and pay quantities for the Contractors monthly
progress estimates were certified
The Engineers survey parties verified reference points established
by the Contractors personnel for vertical and horizontal control points estabshy
lished along the preliminary base line and verified limits of bush clearing
flagged by the Contractor After the final line was staked detailed cross shy
sections were taken for computation of pay quantities Check measurements
were made periodically to verify the construction performed by the Contractor
As sections of the Project were completed final measurements were taken and
as-built plans prepared
Periodic progress reports and charts were prepared for the Government
and AID throughout the construction phase
After substantial completion of the works in January1977 a final inshy
spection of the project was made On January 19 1977 a Certificate of
Completion was issued by the Engineer As required by the Contract the
six-month maintenance period commenced
A synopsis of the more important correspondence initiated or received
by the Consultant in connection with administration of the Contract is included
in Appendix D
B SEQUENCE OF EVENTS
During late July and early August1973 the Contractor began to mobilize
personnel at Pandamatenga preparatory to commencing construction of the main
camp facilities
A sub-contract for construction of the engineers facilities atd some
items of the Contractors camp was negotiated between Grove International
and Botzam Services of Livingstone Zambia During September 1973 the subshy
contractor mobilized men equipment and material at Pandamatenga and comshy
menced construction on main camp housing units
On September 20 1973 the Contractor having been denied access
through the Botswana-Rhodesia Border at Pandamatenga for mobilizing equipment
material and supplies decided to shift the main camp site to the vicinity of
Kazungula The camp site was established at Kilometer 3+400 on the Chobe
River By-Pass road approximately 8 Kilometers east of the village of Kasane
3 -6shy
During late October construction of housing shops offices wareshy
houses and ancillary facilities commenced at the relocated main camp site
The camp facilities were substantially completed by the end of March 1974
Temporary satellite camps were later established at Pandamatenga at Kilometer
105 and at Kilometer 63 on the Nata-Kazungula segment of the project
Mobilization of construction equipment personnel material and supplies
began in early October 1973 and continued through April 1974
During the remainder of 1973 the construction efforts were concentrated
on construction of the main camp site A small amount of clearing grubbing
and earthwork was accomplished on the Chobe River By-Pass Road and on the
northern end of the Nata-Kazungula road
1 Principal Construction Accomplishments During 1974
Clearing and Grubbing - 5366 hectares completed between
Kilometer 297 and Kilometer 169 on the Nata-Kazungula segment
of the project
- Earthworks - excavation and borrow quantities came to a total
of approximately 506500m with the major portion of this work
performed between Kilometer 297 and Kilometer 196 on the Nata-
Kazungula segment of the project
- Pipe culverts - installed 59 pipes ranging in size from 18 to 60
diameter for a total of 1129 linealmeters between Kilometer 297
and Kilometer 196 on the Nata-Kazungula segment and from
Kilometer 0+000 to Kilometer 3+500 on the Pandamatenga Access
Road
Base Course - approximately 113600m placed between Kilometer
297 and Kilometer 197 on the Nata-Kazungula segment and from
Kilometer 0+000 to Kilometer 2+350 on the Pandamatenga Access
Road
Surface Course - approximately 19000m was placed between
Kilometer 292 and Kilometer 273+500 on the Nata-Kazungula segment
5-7shyI
2 Principal Construction Accomplishments During 1975
- Clearing and Grubbing - 634 hectares completed between
Kilometer 169 and Kilometer 2+000 on the Nata-Kazungula
segment between Kilometer 0+000 and Kilometer 14+000
on the Chobe River By-Pass segment and from Kilometer 2+350
to Kilometer 5+275 on the Pandamatenga Access Road
- Earthworks - excavation and borrow quantities came to a total
of 379145m3 with the major share of this work performed
between Kilometer 196 and Kilometer 49+000 on the Nata-
Kazungula segment and on the Pandamatenga Access Road
- Pipe Culverts - 69 pipes were installed ranging in size from
18 to 60 in diameter for a total of 1308 lineal meters
between Kilometer 200 and Kilometer 65 on the Nata-Kazungula
segment and from Kilometer 0+000 to Kilometer 5+200 on the
Pandamatenga Access Road
Base Course - approximately 219000m was placed between
Kilometer 197 and Kilometer 57 on the Nata-Kazungula segment
and on the entire 52 kilometers of the Pandamatenga Access
Road
Surface Course - approximately 177 000m of surface material
placed between Kilometer 273 and Kilometer 130 on the Nata-
Kazungula segment
3 Principal Construction Accomplishments During 1976
- Clearing and Grubbing - completed 2188 hectares between
Kilometer 2+000 and Kildmeter 0+000 and between Kilometer
297+300 and Kilometer299+600 on the Nata-Kazungula segment
and between Kilometer 14+000 and Kilometer 65+000 on the
Chobe River By-Pass segment which completed this item of
work
- Earthworks - excavation and borrow quantities came to a total
of 235092m which completed this item of work
-8shy
Pipe Culverts - 36 pipes were installed ranging in size from
18 to 48 diameter for a total of 973 lineal meters The
major share of this work was performed on the Chobe River
By-Pass segment
Base Course- 206120m3 was placed on the Nata-Kazungula
road between Kilometer 57+600 and Kilometer 0+000 and between
Kilometer 297+300 and Kilometer 299+588 and on the Chobe River
By-Pass road between Kilometer 0+000 and Kilometer 65+048
Surface Course - 260878m placed between Kilometer 130+000
and Kilometer 0+000 on the Nata-Kazungula road and between
Kilometer 0+000 and Kilometer 65+048 on the Chobe River By-Pass
Road
4 Principal Construction Accomplishments During 1977
The Contractor continued to work on final clean-up and corrective
work in accordance with the punch list provided by the Engineer On January
19 1977 the Completion Certificate was issued with a list of outstanding
deficiencies attached These were rectified by the Contractor during the
early part of the six-rnnth maintenance period The Contractor in compliance
with the Engineers instructions installed 10 additional 18 diameter CMP
culverts on the Nata-Kazungula road between Kilometer 236 and Kilometer 238
Two additional pipes were installed at Kilometer 6+540 on the Chobe River
By-Pass Road Rock was placed on sand fill slopes and at culvert inlets and
outlets to guard against erosion on numerous sections of the Nata-Kazungula
Road and Chobe River By-Pass Road The Contractor maintained the project
until July 19 1977 when a Certificate of Maintenance was issued
C PROTECT SCHDULING AND DELAYS
On October 5 1973 as required by Clause 12 Part II-Conditions of
Particular Application of the Conditions of Contract - the Contractor submitted
his proposed construction schedule for the project The schedule was returned
to the Contractor on October 16 1973 for modifications It was resubmitted
and finally approved on March 19 1974
-9shy
In October 1974 the Contractor presented a revised construction schedule
It was not approved by the Engineer who informed the Contractor that the
actual rate of progress was far below that projected by the schedule and reshy
quested an explanation as to what steps were contemplated to bring progress
on the project up to schedule
On November 6 1974 the Contractor again presented a revised conshy
struction schedule reflecting a completion date beyond the contract period for
completing the Project The Contractor made reference to conditions which
had allegedly caused delays to progress on the Project and stated that claims
would be presented requesting time extension for completion of the Project
The revised schedule was not approved pending presentation by the Contractor
of all supporting details
By the end of December 1974 the Contractor had completed 29 percent
of the work then specified in the Contract as modified by ten change orders
This compared with 55 percent scheduled to be completed according to the
approved progress schedule
On February 27 1975 the Engineer notified the Contractor that progress
was continuing to fall further behind the approved construction schedule and
requested the Contractor to submit in writing his plans for bringing progress
up to schedule in compliance with pertinent provisions of the Contract On Tuly
24 1975 the Contractor again presented a revised construction schedule reflectshy
ing a completion date of August 31 1976 This schedule was accepted by
the Engineer in September 1975 with the provision that acceptance of the
schedule should in no way be construed as an approval for extension of time
for completion of the project
By the end of 1975 the Contractor had completed 63 percent of the work specified in the contract as compared with 73 percent projected in the revised
construction schedule
On March 11 1976 the Contractor presented the 6th revision of the
construction schedule reflecting a completion date of December 31 1976
This schedule is included herein as Figure 2 The schedule was accepted by
the Engineer on March 24 1976 with the provision that acceptance of this
schedule should in no manner be construed as an approval of extension of time
for completing the project
-0shy
LEGEND CONSTRUCTION PROGRESS CHART BOTSWANA-ZAMBIA HIGHWAY
WORK ELEMENT lt I
MOBILIZATION 7 T z ltgt 7gtlt74gtlaquo 7
GENERAL gt gt lt lt+ $ lt2740gt77
SURVEYS
AND SITE CLEARING
PREPARESUGRADE lt gt
7+47
I EARTHWORKS ~kgt1 E ~gt07 gt0gt0 ~laquolt gtgt~lt7laquogt 77gt
BASE COURSE
SURFACE COURSE ~lt 7ltgtlaquoD4
+4 7iA
gt
ltgt7 77 gtlt4lt
P
DRAINAGE I-shy___MAINTENANCEI I _ _ _ _
FACILITIES - -gt 7 7 7 7lt7 ltgttVViV77W7vV~7~
HIGHWAY HARDWARE lt
CHANGE ORDERS AND I
DAY WORKS lt
TOTAL
VII FINANCIAL SUMMARY
As indicated in Section I-B of this report the funds available (from
AID) for the construction of this project were in the amount of U S $16600000
The disbursements of monies for the construction and construction supervision
through May 31 1978 are summarized in Table 3 along with the original esshy
timated amounts for comparison
TABLE 3
Disbursements Through Original Estimated
May 31 1978 Amounts
US $ RandPula US $ RandPula
Construction Costs (Grove International See Table 5) 882317486 310970881 897784200 316082500
Change Orders (From Table 1) 4276898 - 95829606
Supervision of Construction (TAMS) 129796299 - 135468100 -
TOTALS 1016390683 406800487 1033252300 316082500
From original contracts and supplements through May 31 1978
Table 4 presents a summary of final construction costs including
those by Contract Pay Items disbursed to the Contractor (Grove International)
The above listed costs do not include back charges on the loan which
charges are not available to the Engineer
The Contractor has submitted a series of claims requesting extensions
of time and reimbursement for claimed additional costs These claims are
currently under review by the Engineer A supplemental report will be issued
by the Engineer after the Contractors claims have been resolved and will
include any additional costs and time extensions awarded to the Contractor
Assuming an average rate of exchange of 1000 Pula or 1000 Rand
equal to 1350 U S Dollars and neglecting bank charges the approximate
loan balance as of May 31 1978 was U S $940000
-12shy
An average conversion rate of exchange has been used to estimate
the loan balance since the actual rate varied and actual draw-down figures
are not available to the Engineer
At the time of Project commencement the currency of Botswana was
the Rand In August 1976 the Botswana Government changed over from the
Rand to the Pula as the official currency During the course of construction
local currency disbursements have been made to the Contractor in both Rand
and Pula
-13shy
--- =1m =- M Il-- M=M m -
Sheet 1 of 4TABLE 4 - SCHEDULE OF FINAL CONTRACT QUANTITIES
Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount RandPula
No Description Measure Final Quantities US $ RandPula US $
101 Mobilization Lump Sum 10000 57077200 58360600 -0shy
201 Engineers Staff Housing 2-Bedroom House Each 1 3333 1300000 272100 1300000 272100
202 Engineers Staff Housing 3-Bedroom House Each 3 10000 1400000 339300 4200000 1017900
203 Engineers Staff Housing Technicians House Each 4 10000 650000 130100 2600000 520400
204 Engineers Staff Housing Jr Staff Housing Each 16 10000 112500 19600 1800000 313600
205 Moving amp Re-erection of Engineers Staff Housing Each move NOT APPLICABLE
206 Engineers Main Office Lump Sum 10000 1800000 306300
207 Engineers Main Laboratory Lump Sum 10000 2600000 407700
208 Moving amp Re-erection of Engineers Main Office Each Move NOT A P L I CA B L E and Main Laboratory
209 Engineers Forward OfficeLaboratory Each 2 10000 766300 1532600 -0shy
210 Additional Surveying Office Laboratory and Prime Cost 69809 1500000 1047146 -0-Communication Equipment
211 Contractors Expenses and Profit on Percent 69809 25 261787 -0-Prime Cost Item 210
212 Provide and Maintain Vehicles for ihe Engineers Staff Vmonth 304 Vmonth 24000 17100 7296000 5198400
301 Basic Survey and Setting Out km 370590 km 48500 13400 17973600 4965905
302 Clear Heavy Bush Hectare 514075 ha 23200 7500 11926540 3855563
303 Cleat Light Bush Hectare 70053 ha 15500 5000 10858215 3502650
304 Clear Grassy Hectare 1775 ha 12400 4000 2201000 710000
401 Prepare Sand Subgrade for Embankment m2 3335443 m 2 011 006 36689873 20012658
402 Prepare Clay Subgrade for Embankment m2 408450 m 2 023 011 9394350 4492950
501 Construct Standard Embankment i3 865895 m3 117 047 101309715 40697065
3502 Construct Special Embankment m3 254779 m 196 074 49936684 18853646
030 384035 129450503 Excavate Unsuitable Material m3 4315 m3 089
601 Base Course m3 538854 m3 310 120 167044740 64662480
602 Overhaul of Base Course Material m3km 46462 m3kr 028 010 1300936 464620
701 Remove Overburden from Surface Course Borrow Pits m3 260056 m3 060 016 15603360 4160896
702 Surface Course m3 457260 m3 545 210 249206700 96024600
703 Haul of Surface Course Material m3kmn 6572330 m3kr 0102 0034 67037766 22345922
TABLE 4 (Continued) Sheet 2 of 4
Item No Description
Unit of Measure
Total Revised Final Quantities
Contract Unit Price US $ RandPula
Final Revised Contract Amount US $ RandPula
801
802
803
Excavation and Backfill for Cuiverts up to 48 inches in diameter
Excavations for foundations of Culverts 48 inches and over
Backfilling culverts 48 inches and over
m3
m3
m3
558512 m3
94946 m3
322010 m3
480
270
490
330
140
360
2680858
256352
1577849
1843090
132923
1159236
804 Nestable Galvanized Corrugated Metal Pipe 18 inches in diameter 14 USSG
PIPE LM 249963 LM 4380 820 10948379 2049697
END SECTIONS Each 388 each 6660 225 2584080 87300
805 Nestable Galvanized Corrugated Metal Pipe 24 inches in diameter 14 USSG
PIPE LM 28104 LM 5560 1100 1562582 309144
Supply additional 24 inch diam Pipe 114035
END SECTIONS Each 34 each 10200 800 345800 27200
Supply additional End Sections 30600
806 Nestable Galvanized Corrugated Metal Pipe 36 inches in diameter 12 USSG
PIPE LM 19506 LM 10500 1600 2048130 312096
END SECTIONS Each 28 each 27600 2100 772800 58800
807 Nestable Galvanized Corrugated Metal Pipe 48 inches in diameter 12 USSG
PIPE LM 11522 each 13500 2200 1555470 253484
Supply additional 48 inch diam Pipe 10480
END SECTIONS Each 10 each 76200 4300 762000 43000
808 Nestable Galvanized Corrugated Metal Pipe 60 inches in diameter 10 USSG
PIPE LM 48768 LM 20400 2700 9948672 1316736
Supply additional 60 inch diam Pipe 47510
809
810
811
Excavate inlet and outlet drains mitre ditches and roadway ditches
Sand-cement Pitching
Clay slope Protection
m3
m3
m2
477781 m3
276769 m3
NA
110
2300
030
3000
100
525559
636569
-0-
143334
830307
-0shy
Supplied but not installed
mi -blN mN -m~ m ml m min nmlW arm~ nn- a a a a1 al a
TABLE 4 (Continued) Sheet 3 of 4
Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount No Description
812 Supply Nestable Galvanized Corrugated
Metal Pipe 18 inches in diameter 14 USSG
PIPE
END SECTIONS
901 Construct Maintenance Facility Complex
902 Water Pump
903 Contractors Expenses and Profit on Prime Cost Item 902
1001 Road Signs
1002 Guide Posts
1003 Kilometre Posts
Dayworks
TOTAL-SCHEDULE OF QUANTITIES
a
0) CO I CO 2
TAMS Staff Hotel Accommodation
Air Conditioners TCN Houses
CO 3
CO 4
NA (Progress Payment Permanent Material)
Additional TCN Housing
SUB-TOTAL
CO 5 POL Escalation Cost
CO 6 POL Escalation Cost
CO 7 POL Escalation Cost
SUB-TOTAL
LESS OVERPAYMENT
TOTAL POL ESCALATION COST
CO 8 Interim Allowance (Wage)
CO 9 Wage Escalation Cost
SUB-TOTAL
LESS OVERPAYMENT
TOTAL WAGE ESCALATION COST
Measure
LM
Each
Lump Sum
PC Sum
25
Each
Each
Each
As directed
Each
Final Quantities
238 LM
0 each
98
284 each
900 each
182 each
100
100
100
NA
6
100
100
100
100
100
US $
3400
6700
8520
As Billed
650000
As Shown
As Shown
As Shown
As Shown
As Shown
RandPula
900000
1000
1450
1500
130100
US $
809200
-0-
13014800
-0-
-0-
2419680
-0-
-0-
5999421
882317486
376898
3900000
4276898
RandPula
-0shy
-0shy
7308700
255223
63806
284000
1305000
273000
-0shy
310970881
842138
5307
780600
1628045
575601
1815344
77277517
79668462
1661539
78006923
297802
16022556
16320358
125720
16194638
TABLE 4 (Continued)
Item No Description
Unit of Measure
Total Revised Final Quantities
Contract Unit Price US $ RandPula
Sheet 4 of 4
Final Revised Contract Amount US $ RandPula
CO 10
CO 11
CO 12
Road Reserve cleared way Chobe River By-pass (included under items 302 303 and 304)
Importation Additional Sheeps foot roller (included under item 101)
Minor realignment of roadway at Nata
TOTAL CONSTRUCTION COST
100
100
100
886594384 406800487
ishy
I I I I I I I I
APPENDIX A
I CONSTRUCTION EQUIPMENT
I I I I U I I I I I
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT
I Descqription
2 Chevrolet Impala Sedan
5 jeep-Wagoner
7 jeep-Wagoner
1 Chevrolet Vega
23 Chevrolet Pickup
19 Mack Tractor (T675-8W)
2 Chevrolet Flat Bed
5 Mack-Platform Stake (T426-3500)
1 Mack-2000 Gal Fuel (T426-3500)
4 Mack Dump Truck 10 cy
2 Chevrolet Dump Truck 5 cy
1 Mack-Birmingham Tandum Lowboy Trailer
2 Mack-Gindy 25 Ton Tandum Semi Trailer
8 Heil- P3S 303 cy Dump Trailer
I 7 Fruehauf-TEO-F3-R 10000 Gal Tanker
5 Fruehauf-TEO-F2-R 6500 Gal Tanker
5 Fruehauf-Tandum Axle Dolly
2 Barko 14000 Telescopic Crane
6 Cobey 1062 Wagon Trailer
1 Cedarapids 443 Commander Crusher
1 Peerless Portable Base Stabilisation Plant
2 Atlantic International Water Treatment Plant
6 Caterpillar 631-B TractorS631-B Scraper
7 Caterpillar D8-H Dozer
2 4
Caterpillar D9- Dozer Caterpillar D6-C Dozer
2 Caterpillar 12-F Grader
5 Caterpillar 14-E Grader
U A-i
1
I
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (Cont)
Quantity
4
1
4
11Raygo
1
S1 2
ICaterpillar-200KW 3
1
1
1
1
1
3
2 2
2
I
1
2
2
I
1 2
8
1
j 8
1 4
9
1
Description
Caterpillar 966 Loader
Trojan 4000 Loader
Raygo 400A Compactor Vibrator
410A Compactor Vibrator
Vibro Plus Vibrating Sheepsfoot Roller
Bros 10000 Compactor
Bros 6000 Compactor
Generator Caterpillar - 125KW Generator
Little Reddevil Generator
Kholer 3KW Generator
Kholer 2KW Generator
Detroit Diesel Generator (2D-32)
Kholer Generator (5CKM61)
Hobart GR-3 03 Welders w trolley
Worthington 365 Compressor Worthington 160 Compressor
Kellypower Tamper
John Deere 2700 Disc Harrow10 Cut
ohn Deere 1630 Disc Harrow 7 Cut
Worthington WS-55 Rock Drill
Alemite Portable Service Station
Graco Lube Ranger
Worthington Wagon Drill
Layne Bowler Deep Well Pump
Layne Bowler Pump only
4 Centrifugal Pump
2 Centrifugal Pump
Columbian Steel Water Tanks 20000 US Gal
A-2
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (contd)
Quanti
1I Description
Caterpillar Parallel Shank Ripper
2 Fleco Blade Rake
4 Chainsaw
3 Gardner-Denver Compressor
5 Aerotron Radio Transmitters $1203
7 Aerotron Radio Receivers $2 10
16 SSB Radio Transceivers $1340
8 Auxilliary Radio Transceivers $1340
2 Cevy 4 x 4 Pickup Truck 8 Chevy 2 x 4 Pickup Truck
1 L B Smith Cone Crusher
2 Ford 4 x 4 (1164-14C Tractor)
2 Bros Sheepsfoot Roller
1 Hyster Towed Vibratory Compactor
During 1975 and 1976 the Contractor added the following listed equipment
1 Caterpillar No 14 Motor Grader
1 Caterpillar No 966 Loader
1 Trojan No 4000 Loader
1 Cone Crushing Plant 3 ft Standard Fine Bowl with 4 Deck Screens
4 Conveyor Units
A-3
I 1 I I I U I I
APPENDIX B
I I SOILS AND MATERIALS
I I 1 I I I I I 1
APPENDIX B
SOILS AND MATERIALS
(a) General
The road pavement is composed basically of two layers the surface
course and base course overlaying a compacted subgrade or embankment
The sources and volumes of the surface course and base course materials
are indicated in the Materials Utilization Diagrams included as Figures B-i
through B-4
(b) Subgrade
The subgrade soil consists primarily of aeolian fine sand except
for approximately 36 kilometers of the road for which the subgrade is a pan material consisting of clay In the pan areas special 1 Om thick
embankments were constructed with plasticity and fineness control of material
The subgrade and embankment soils were compacted to a minimum of 90
of modified AASHTO compaction The measured mean relative compaction
obtained immediately after compaction of the subgrade was 935 of the modified AASHTO maximum density
(c) Base Course
The majority of the base course materials are derived from aeolian deposits ie fine sand with a trace to some silty clay The
remaining base bourse approximately 15 of the total was obtained from pits having a large component of gravel The 15cm thick base
course is bank run or blended material for which the amounts of fines
and plasticity were controlled The base course materials were obtained from 123 base borrow pits and compacted to a minimum 95 of modified AASHTO density The measured mean relative compaction
directly after construction was 96 of the modified AASHTO maximum
density
(d) Surface Course
The 15cm thick surface course is well graded sandy gravel with
some silty clay fraction The materials for the road segment from
Kilometer 0+000 to Kilometer 173+000 are derived from calcrete deposits
while the materials for the remaining portion are derived from weathered
3-1
bedrock The surface course has controlled gradation plasticity and
durability to obtain sufficient strength to reduce ravelling to a minimum
particularly during the dry season and to resist the wear of traffic
Surface course materials have been obtained by screening crushing
and blending materials from 9 borrow areas and were compacted to a
minimum of 98 of modified AASUTO maximum dry density The comshy
posite properties for each borrow pit are indicated in the Average
Gradation Ourvesincluded as Figures B-5 through B-13 Directly
after construction of the surface course the measured mean relative
compaction was 100 of the modified AASHTO maximum density
B-2
N A TA K A ZUN GU LA RO0A D 70 033 90 CC
00 00 0 0 0+I 03- 30L K
0 I I
M 3 100 0002L [2
_
MATERIALS UTILIZATION DIAGRAM Fiure -I
NATA - KAZUNGULA ROAD
+--- 121
y T
MATERIALS UTILIZATION DIAGRAM Fgure R-Z
NAT A - KAZ UN GULA ROAD
07 2 230K300 220 220 232 252
I 3 3 2
MATERIALS UTILIZATION DIAGRAM Figure 2-3
itLT-m
CHOBE RIVER BY-PASS ROAD 02__ Q___ 0 60 40 - 0 50 0 i
-F-CEL
-Tl J-II II
MATERIALS UTILIZATION DIAGRAM Figure B-4
3 SIEVE ANALYSIS SMI~ia VIII
IY UN In~ VI STAISRS SIEVE NUMBfh SUE9 - usuLguNuus O-- aoIiUl- I1
11I a to to 0 i oIIIa lf I
II
SN Cu ye B
II N
o
i B _ ___~ N II 1 l s - Curi e At-
I 2 I a 6 4 2 i5 4 3 2 a -
GRAIN I IZE MILTERS
SILT AND CLAY SOILS GRAVEL SAND
I NUMBE1RSAMPLE DEPTH LL KIE IPTIONIELEV P1 ECIT
A Composit 38 19 CrusherAverage Runof 192 samples
B Composit 33 17 Surface Course Blend asAverage of 236 samples placed
MDD 1960 kgm Los Angeles Abrasion = 42 Average Blend Added 15=
REPUBLIC OF BOTSWANA TI PPETTS-ASSETT-NcCAIThY-STRATTOU MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY BOTSWANA-ZAMBIA GRAIN SIZE DISTRIBUTION BY DmArTE Q76HIGHWAY j PIT 2A DOi FIGURE B-5
E ANLYSISSIEVE NALYSIS NI
OPEING - In jS PhIMS-SEVE iNRh3EN son - MILLIMETER
V11 6plusmn SSIEVE
6 i S 0-4 0 10 miUS) 3055 3 001mesa a
9 I I I - -
Crye B
S bull
1TCrii INN20 1 e A- NI deg I FIK 46591 2 a045 4 2 1115 5 2 6
GRIISZ IN MILLIMETERS
COACE iE NtIUM FI SILT AD CLAY SOILSGRAVEL SAND
5r IBSAMPLE DEPTH ELEV LLP1
A Composite 28 10 Crusher Run Average of 229 samples
B Composite 28 11 Surface Course Blend as Placed Average of 58 samples
2050 kgm3 Averaoe Blend Added shy
TIPPETTS-ASETT-NCCARTIY-STATTONREPUBLIC OF BOTSWANA NEW YORK NY
MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS
BRAIN SIZE DISTRIBUTION BY NCZ jAATE9 876BOTSWANA-ZAMBIA
HIGHWAY PIT 14 amp 14A OWN FIGURE B-6
i
S ANALYSIS 01 ANALYSIS
SIEVE - n -IIII- SIZ-MII- - IN i
It a s 1
Ue a -- e B
- 1 -I-[_I - I I I
6l51 10 8 $514 1 O is 05I I 21 8GANSZNILMTR OA RE Filo 9OA-1i 1DI UM F log S ILT AND CLAY SO ILS
GRAVEL nSAND
E--l I UNEASMPLEDEPlTH ELEV LL P1 KWKIPTION
A Composite 36 19 Crusher Run
Average of 116 Samples
B Composite 36 15 Surface Course Blend Average of 138 samples
H GHWA E SA 18 SILT ANDURCLA-SIL
3kgm Los Angeles Abrasion 28
Av agau Pnd AAd = 907 ITI UETT$-ABBTT-NcentcentARTNY-STRATTON
NEW YORK NY
REPUBLIC OF BOTSWANA
MINISTRY OF WORKS amp COM24UNICATIONSIT NINEERS1
I I MGIELI7 I 1 8AIIGIWAE
I
4
SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU
V 1 Oe 001l
- -r--I-I -- I
S E- -IN S
KI zz7llfl$zIIIti z I
low560
20
2
IGRAIN SIZE IN MILLIMETERS
COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS
GRAVEL SAND
SAMP DEPTH ELEV L P1 0NBERIIPTI
A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples
B Composit( 28 13 Surface Course Blend as Placed
Average of 85 samples
Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA
REPUBLIC OF BOTSWANA TI EfTTS-AIETT-NCARTY-STRATTOi ITTqTPI yen O WOVQ A n rn WTraTTn~lz ENGINEERS NEW YOlK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8
-D IUR IB
II SIEVE ANALYIIS 1411 I LYIlMll
[urn $11min - I I ITUSE IVV I - mampINimums1 -l0 n 001
a1 i 4 is s 0 aL w I 2 0665S a a 4 i 0i
-7sl
96---
I RI IE IN M IEER
CfliEI FIN g o au SIT SILFIN M40 5C o432 14593 ry B6
ver 7 samples
NUMBE NERPI
Ay I GRAIN SIZE IN MILLIMETR
5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND
A Q A- Aii dd d~A
IMUBEIRIIIIPIi
3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables
B Composit 26 13 Surface Course BlendU as Placed
Average of 79 samples
AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =
REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9
SIEVE ANALYSIS IMmv na awLYoia
SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I
I- 01 001
e---__
Ir1 -NIP_]
20
OA
$05 9 2
E
I
86543
I
7tN
2 1 65
_OAlEED t
5 2
FN
I
GRAIN SIZE IN MILLIMETERS
1 111I
NU BE GRAVEL
COARSE
I
MEDIUM
I SAND
FSILT AND CLAY SOILS
SAMPLE4 DEP EEY 1 SCBI1PTIORI
A
B
Composite
Composite
38
26
17
13
Crusher Run Basaltic Aggregate
Average of 176 samples
Surface Course Blend -s Placed Average of 58 samples
Average MDD = 2135 kgm Los Angeles Abrasion = 38
Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY
WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971
3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10
SIEVE ANIALYSIS lNVINI1111 ANALYSIS
I EV OPE IN - INI8 TOSIIEENN1-MLII
I
I - - i ii 0
I GRI SIZEto N OILS 1
I ANDLI IS
G VELIZE I
IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL
-APL ESN
DEPTH ELEY LL PI DESCRIPTIONNUSMBE
3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples
B Composite 26 13 Surface Course Blend as Placed Average of 58 samples
Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34
Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY
BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11
___ I
SIEVE ANALYSIS W11 ANKEm SIS
SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS
01 001
sodego
i i
U Ae
6 559 2 a65 3 2 1 6532 S
II GRAIN SIZE INMILLIMETERS
=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL
GRAVEL SN
I SAMPE DEPTH ELEV LL P)S DESCRIPTION
A omposite 28 10 Crusher Run
SAverage of 72 samples
B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples
Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20
REPUBLICUINISTRY 0OF OF
BOTSWANA WORKS amp COMMUNIGTIONS
TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12
I
SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM
-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U
I _
I1li
Ia _ Cu ve
N IC A11
IQI II
1 IG S IIIMETE
I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND
SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION
A Composite 34 15 Crusher Run Average of 74 samples
B Composite 29 12 Surface Course Blend as Placed
Average of 42 samples
MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15
REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA
ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N
NEW sy cKA
YORK NYT E-2 5 1 7 7
HIGHWAY PIT 32A Mwe FIGURE B-13
I I I I I I I I
APPENDIX C
I WATER WELL LOCATIONS
I I I I I I I I I
APPENDIX C WATER WELL LOCATIONS
WELL NO 3
Location Km 171 Lt of centerline 200 meters
Drill - 6 x 392
Ream - 8 x 92
Case - 6 x 84
Test - 24 Hours - 276
Pump 6000 G P H
Total depth - 392
Pumped at 150
24 Hr Drawdown - 3
Water Good
WELL NO 4
Location Km 175 - Lt of centerline 100 meters
Drill - 6 x 380
Ream - 8 x 82
Case - 7 x 82
Test - 276
Pump 1800 G P H
Total depth - 380
Pumped at 200
Drawdown 24 Hr - 100
Water Good
WELL NO 5 (Govt No 2436
Location Km 178 - Lt of centerline 115 meters
Test -276
Pump - 1400 G P H
Total depth - 160
Pumped at 140
24 Hr Drawdown - 60
Water Good C-1
WELL NO 6
Location Km 183 - Lt of centerline 60 meters
Drill - 6 x 436
Ream - 8 x 86
Case - 7 x 86
Test - 276
Pump - 500 G P H
Total depth - 436
Pumped at 250
24 Hr Drawdown - 150
Water Good
WELL NO 7 - (Govt No 2435)
Location Km 189 - Rt of centerline 100 meters
Clean amp Test
Pump - 6000 G P H
Pumped at 140
24 Hr Drawdown - 10
Water Good
WELL NO 14
Location Km 252 - Lt of centerline 100 meters
Drill - 6 x 250
Ream - 8 x 53
Case - 6 x 53
Test - 276
Pump - 6000 G P H
Total depth - 250
Pumped at 150
24 Hr Drawdown - 6
Water Good
C-2
WELL AT KM 256 MAINTENANCE FACILITY NO 3
Location Km 256 - Lt of centerline 200 meters
Depth - 100 feet
Water Rest Level - 42 feet
Depth Pump Set - 70 feet
24 Hr Test - 1800 G P H
WELL NO 15
Location Km 245 - Rt of centerline 40 meters
Drill - 6 x 260
Ream - 8 x 54
Case - 54
Test -276
Pump - 1500 G P H
Total depth - 260
Pumped at 200
24 Hr Drawdown - 140
Water Good
WELL NO 16 Location Km 236 -Rt of centerline 30 meters
Drill - 6 x 250
Ream - 8 x 22
Case - 6 x 22
Test - 276
Pump -6000 G P H
Total depth - 288
Pumped at 150
24 Hr Drawdown - 10
Water Good
C-3
WELL NO 17
Location Km 224 - Rt of centerline 30 meters
Drill - 10 x 89
Case - 8 x 85
Drill- 8x 43
Drill - 6 x 38
Case -6 x 132
Test - 276
Pump -2000 G P H
Total Depth - 170
Pumped at 100
24 Hr Drawdown - 11
Water Good
WELL NO 18
Location Km 217 - Lt of centerline 200 meters
Drill -i0 x 70
Case - 7 x 70
Drill - 7 x 52
Drill - 6 x 88
Case - 6 x 122
Test - 276
Pump 2400 G P H
Total depth - 210
Pumped at 200
24 Hr Drawdown - 140
Water Good
C-4
WELL NO 19
Location Km 213 - Lt of centerline 100 meters
Drill - 10 x 44
Case - 8 x 40
Drill - 8 x 76
Drill 6 x 130
Case - 6 x 120
Test - 276
Pump - 6000 G P H
Total depth - 210
Pumped at 60
24 Hr Drawdown - 10
Water Good
WELL NO 20
Location Km 143 - Rt of centerline 100 meters
Drill - 10 x 240
Case - 7 x 220
Drill -6 x 378
Case - 6 x 240
Case - 5 x 240
Test - 276
Pump -1500 G P H
Total depth - 618
Pumped at 460
24 Hr Drawdown - 105
Water slightly salty to taste but drinkable
C-5
WELL NO 23
Location Km 139 - Lt of centerline 100 meters
Drill - 12 x 290
Place amp Extract Case - 10 x 290
Drill - 8 x 30
Drill - 6 x 40
Case - 8 x 290
Case - 6 x 320
Test - 276
Pump - 1200 G P H
Total depth - 360
Pumped at 330
24 Hr Drawdown - 120
Water salty
WELL NO 24
Location Km 135 - Lt of centerline 500 meters
Drill - 12 x 270
Drill - 10 x 10
Case - 10 x 270
Drill -8 x 30
Case - 8 x 290
Case -6 x 310
Case - 5 x 320
Test -276
Pump -4000 +G P H
Total depth - 320
Pumped at 270
24 Hr Drawdown - 2
Water Salty
C-6
I
5
WELL KM 205 MAINTENANCE FACILITY NO 2
Location Km 105 - Lt of centerline 40 meters
Depth - 302 feet
~ Water Rest Level - 82 feet
Depth Pump Set - 150 feet
48 Hr Test - 3000 + G P H
WELL NO 26
Location Km 82 - Lt of centerline 100 meters
Drill - 12 x 145
5 -8 x145
Drill - 8 x 23
-Case
I Drill - 7 x 10
Case - 7 x 168
I Case - 6 x178
Test - 276
Pump - 1200 G P H
Total depth - 306
I Pumped at 140
24 Hr Drawdown - 35
I Water Good
C
I 0-7
WELL NO 27
Location Km 77 - Lt of centerline 100 meters
Drill - 12 x 174
Install amp Extract Case - 10 x 174
Case - 8 x 174
Drill - 9 x 68
Drill - 8 x 64
Case - 7 x 242
Case - 6 x 306
Test - 276
Pump - 4000 + G P H
Total Depth - 306
Pumpe at 240
24 Hr Drawdown - 0
Water Good
WELL NO 28- (Govt No 2465)
Location Km 63 - Rt of centerline 100 meters
Clean amp Extract Case - 300
Ream - 10 x 98
Ream - 8x 27
Ream - 6 x 12
Case - 8 x 98
Case - 6 x 125
Test - 276
Pump - 1000 + G P H
Total depth - 137
Pumped at 130
24 Hr Drawdown - 33
Water Good
C-8
WELL NO 30
Location Km 47 - Rt of centerline 400 meters
Drill - 12 x 132
Case - 10 x 89
Install amp Extract Case - 12 x 43
Drill - 10 x 117
Case - 7 x 242
Drill - 6 x 183
Install amp Extract Case - 6 x 408
Test - 276
Pump - 1000 G P H
Total depth - 408
Pumped at 160
24 Hr Drawdown - 77
Water Salty
WELL NO 31
- Lt of centerline 200 metersLocation Km 44
Drill - 12 x 110
Case - 10 x 100
Drill - 10 x 142
Case 8 x 142
Drill - 8 x 250
Case 7 x 392
Drill - 6 x 78
Test - 276
Pump - 3000 G P H
Total depth - 502
Pumped at 160
24 Hr Drawdown - 44
Water Salty
C-9
WELL NO 32
Location Km 42 - Lt of centerline 100 meters
Drill - 12 x 108
Case - 10 x 108
Drill - 10 x 212
Drill - 8 x 120
Case - 6 x 340
Case - 8 x 182
Test - 276
Pump - 3000 + G P H
Total depth - 448
Pumped at 160
24 Hr Drawdown - 20
Water Salty
WELL NO 34
Location Km 35 - Lt of centerline 200 meters
Drill - 12 x 230
Install amp Extract Case - 10 x 230
Drill - 8 x 30
Case -6 x 260
Drill - 6 x 160
Case -5 x 324
Case - 8 x 20
Test - 276
Pump -1000 + G P H
Total depth - 420
Pumped at 150
24 Hr Drawdown - 100
Water Salty
C-10
WELL NO 36
Location Km 7 N E along old track from Km 63
Drill - 12 x 180
Case - 10 x 180
Drill - 10 x 231
Case - 8 x 211
Drill- 8x 254
Case - 6 x 245
Test -276
Pump -4000 + G P H
Total depth - 265
Pumped at 180
24 Hr Drawdown - 0
Water Good
C-11
I 3 I 1 I I I I B j APPENDDC D
SYNOPSIS 0 KEY CORRESPONDENCE
3 DURING CONSTRUCTION
I pound I I I 1 I I
On September 1 1973 the Contractor confirmed the
estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts
On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project
On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be
obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated
On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine
On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation
On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension
On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension
On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval
On October 15 1973 the Engineer returned the construction progress schedule for correction
On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim
D-I
On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor
On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project
On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25
On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter
On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents
On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract
On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised
On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading
On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule
On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request
On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period
D-2
On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report
On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material
On August 19 1974 the Contractor submitted an updated construction progress schedule for approval
On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases
On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor
On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor
On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project
On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course
On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country
On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course
On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions
On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule
On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress
D-3
On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract
On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana
On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor
On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion
On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations
On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases
On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season
On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees
On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections
On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project
On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course
On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project
On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract
D-4
October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request
On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor
On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620
On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project
On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y
completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense
On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted
On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project
On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim
On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic
On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor
On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976
D-5
On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time
On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares
On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material
On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500
On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor
On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula
On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana
OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected
On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road
On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road
Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10
On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued
On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced
On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091
On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091
Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued
D-6
I I IUUU U U UU I U
E PROJECT PHOTOGRAPHS
I IIIU U I
I Crushing Plants Surface Course
Pit 2A
Pug Mill Blending Surface Course
Pit 25A
II Surface Course
Pit 25A
UURYPTOERTOSE Pug Mil Blending
Road Reserve Bush Clearing
Km 242
U
Embankment Construction Km 287
IN
Road Construction Water Supply
Km 189
ROADWAY UNDER CONSTRUTION
II
E-2
Stockpiling Material Base Course
Special Embankment Construction Km 232
Watering of Embankment Km 257
ROADWAY UNDER CONSTRUCTION E-3
Culvert Assembly
Twin Culvert with Sand-Cement Pitching
Multiple Culverts with Sand-Cement Pitching
CULVERT INSTALLATIONS E- 4
AT Km 25
AT Km 194
Emergency Landing Strip Kra 2605
FINISHED ROADWAY E- 5
AT Km 286
AT Chobe By-Pass Junction Km 297
I Chobe By-Pass Road Near Ngoma Bridge
E-6FINISHED ROADWAY
FINAL REPORT
REPUBLIC OF BOTSWANA MINISTRY OF WORKS AND COMMUNICATIONS
BOTSWANA -ZAMBIA ROAD PROJECT AID LOAN NO 690-H-001
NATA - KAZUNGULA ROAD PANDAMATENGA ACCESS ROAD
CHOBE RIVER BY - PASS ROAD
JULY 1978
TAMS TIPPETTS-ABB ETT-McCARTHY-STRATTON
ENGINEERS AND ARCHITECTS NEW YORK GABORONE
TABLEOF CONTENTS
PAGE
I INTRODUCTION I A DESCRIPTION OF PROJECT 1 B FUNDING 2 C CONTRACTUAL ARRANGEMENTS 2 D MODIFICATIONS OF CONTRACT 2
II STAFFING 4
III TRAINING 4
IV CONSTRUCTION EQUIPMENT 4
V MATERIALS UTILIZED 5 A SOILS 5 B WATER 5
VI PROTECT HISTORY 5 A GENERAL 5 B SEQUENCE OF EVENTS 6 C PROJECT SCHEDULING AND DELAYS 9 D REMEDIAL ACTION 11 E PICTORIAL HISTORY 11
VII FINANCIAL SUMMARY 12
APPENDICES A CONSTRUCTION EQUIPMENT B SOILS AND MATERIALS C WATER WELL LOCATIONS D SYNOPSIS OF KEY CORRESPONDENCE E PROJECT PHOTOGRAPHS
LIST OF FIGURES
FIG 1 LOCATION MAP
FIG 2 CONSTRUCTION PROGRESS CHART
FIG B-i THRU B-4 MATERIALS UTILIZATION DIAGRAMS
FIG B-5 THRU B-13 AVERAGE GRADATION CURVES
UNITED STATES GOVERNMENT INSTRUCTIONS
Subject
2- a emo Final Report Botswana -Zambia Road Project
use routing symbols whenever possible
SENDER Use brief informal language Conserve space Forward original and one copy
RECEIVER Reply below the message keep one
copy return one copy
DATE OF MESSAGE Routing Symbol
TO
4 fiSENGR CampRSC No 8 Rm -507 SA-11I AID Washington DC 20523a
kl7
= dTUei
TITLE OF-ORIGINATO~R-D0
-FOLD-INITIAL MESSAGE
Chief Engineer Hl)S0 -FOLD--
Enclosed please Road Project
find 8 copies of the Final Report on Botswana - Zambia
REPLY MESSAGE
DATE OF REPLY Routing Symbol
From fDanald W Reilly USA=h to Kenya
PO Box 30261 Nairobi Kenya
101878 SIGNATURE OF REPLIER
Palmer Stearns
TITLE OF REPLIER
DSENGR
5027-104 1 TO BE RETAINED BY ADDRESSEE
Civil Engineer OPTIONAL FORM 27
JULY 1973 GSA FPMR (41 CFR) 101-116
3m ZAMBIA
I ANGOLA GULN - KASANEI
IGOI THE PROJECT
APANIDAMATENGA
R ES8A
BOSA AZAMIATR
B 0 T S A N APO
SERULI SELIBI
LEPXEPE AIG R 1ATINS DRIFT
TSHANER EP 0O F
MOLEPOLOLE
W bull PLOBATSE
l--
TSMABON
AMATuLASA LEGEND
PROJECT ROAD
bull MAIN ROADS -MAIN FEEDER ROADS
SECONDARY ROADS
-= --
BOTSWANA -ZAMBIA LOCATION MAP
FIGURE 1
ROAD
I INTRODUCTION
This is the final report on the construction of the Botswana-Zambia
Highway Project accomplished between April 25 1976 and January 19 1977
The report has been prepared in accordance with Guidelines for Preparing
Final Report dated September 30 1963 as issued by United States Agency for
International Development
A DESCRIPTION OF PROJECT
The Project consists of three sections of all-weather two-lane highshy
way with a total length of 370 kilometers including
1) The Nata-Kazungula section approximately 300 kilometers
in length beginning at Nata (See Figure 1) on the Francistown
Nata road and extending north west to the existing ferry cross shy
ing to Zambia on the Zambezi River at Kazungula
2) The Chobe River By-Pass section approximately 65 kilometers
in length beginning near Kazungula at Kilometer 2973 on the
Nata-Kazungula highway and extending south west skirting
the town of Kasane through the Chobe National Park to the
bridge across the Chobe River at Ngoma
3) The Pandamatena Access Road 5 kilometers in length
beginning at approximately Kilometer 198 on the Nata-Kazungula
highway and extending east to the village of Pandamatenga
on the Botswana-Rhodesia border
Construction work included clearing and grubbing of 1392 hectares
earthwork of approximately 1120000 cubic meters 3400 meters of culvert
1538800 cubic meters of base course and 457200 cubic meters of surface
course
The project design was performed under an agreement dated June 15
1971 for professional services between the Government of the Republic of
Botswana and Tippetts-Abbett-McCarthy-Stratton of New York U S A
-1shy
B FUNDING
Funds for construction and construction supervision of the Project
were provided by loan agreements between the Government of the Republic of
Botswana and the United States of America acting through the Agency for
International Development (AID) The funds allocated were in the amount
of US $16600000 and were derived from the following sources
-U S $12600000 AID Loan No 690-H-001
-U S $ 4000000 First Amendment No 690-H-001A
C CONTRACTUAL ARRANGEMENTS
A contract for construction of the Botswana-Zambia Highway Project
was signed on Tune 26 1973 between the Government of the Republic of Botswana
and Grove International Corporation and Grove Shepherd Wilson and Kruge Inc
a joint venture for an estimated total cost of construction of US $897784200
and Rand 316082500 The contract provided for completion of the project
by April 25 1976 a 975 day period from Notice to Proceed given on August 22
1973
There were two amendments to the contract both dealing with the condishy
tions and limits for Off-Shelf purchases
A contract for supervision of construction was entered into by the Government
of the Republic of Botswana and Tippetts -Abbett-McCarthy-Stratton (TAMS) in
the form of a supplement to the basic agreement for design of the project The
supplemental agreement was dated July 2 1973 Two amendments the first
dated September 29 1976 and the second dated July 26 1977 extended the
the time for completion and modified the original estimate for cost of inspection
services
D MODIFICATIONS OF CONTR4tCT
During the course of construction twelve Change Orders approved
and signed by the Government were issued These orders are briefly described
in Table 1
-2shy
5307
TABLE 1 CHANGE ORDERS
Change Order Cost No Purpose US$ RandPula
1 Hotel rentals for Engineers staff while awaiting completion of housing units 842138
2 Additional air-conditioning units for staff housing 376898
3 Arrangements for monthly advance progress payments for permanent materials on site shy
4 Addition to the number of TAMS staff housing units 3900000 780600
5 For escalation of POL costs between 11 November 1973 and 11 February 1974 575601
6 For additional escalation of POL costs between 11 February 1974 and 14 May 1974 1815344
7 For additional escalation of POL costs between 14 May 1974 and 19 July 1974 77277517
LESS OVERPAYMENT (-)1661539
8 Interim allowance by GOB authorization to all employees to maximum rate of R500 per month between April 1973 and March 1974 297802
9 Escalation of minimum wage rates for field personnel 16022556
LESS OVERPAYMENT (-)125720
10 Reduction InRoad Reserve clearing on Costs included in Chobe By-Pass Road amounts in pay
items 302 303 and 304
11 For increase in mobilization costs to Costs included in cover importation of additional compaction amounts in equipment pay item 101
12 For minor realignment of roadway at Costs included in Nata contract pay items
TOTALS 4276898 95829606
-3shy
II STAFFING Excluding the mobilization and demobilization periods the major conshy
struction efforts took place during the calendar years 1974 1975 and 1976
A summary of the project staffing is presented in Table 2
TABLE 2
AverageMaximum Staffing Levels
Contractors Staff Engineers Staff
YearSource US Botswana TCN Code 941 US Botswana TCN
1974 17 232 2 22 4 11 9 1975 18 302 3 43 4 12 9
1976 15 290 3 40 4 13 7
Maximum 20 359 5 49 4 14 9
A paving specialist visited the Project in December 1973 and une 1974
in connection with proposals for upgrading the Project and again in March 1975
in connection with selection of material for the surface course
A partner from the Consultants home office made periodic visits to the
Project sites
III TRAINING
The Contractor trained Botswana Staff as drivers equipment operators
and oilers surveyors soils technicians mechanics helpers stewards and
maintenance workers
The Engineer trained Botswana Staff as soils technicians surveyors
drivers draftsmen and office clerical workers
IV CONSTRUCTION EQUIPMENT
In compliance with a requirement of the Contract Documents the Conshy
tractor presented a schedule of major plant and equipment to be used on the
Project Some adjustments were made to the listing as the job progressed
-4shy
Advances for the purchase of new items (materials construction plant
equipment tools spare parts maintenance supplies and buildings furniture
and equipment for the Contractors and Engineers camps) totaling U S
$124443700 and local currency Rand 225000 were made available to the
Contractor as provided for by the Contract Documents Reimbursement of
these advances were made in January1974 in accordance with the Contract
requirements
The major items of construction and shop equipment imported by the
Contractor for use on the project are listed in Appendix A
V MATERIALS UTILIZED
A SOILS
The formation consists of two layers the surface and base courses
placed on a compacted subgrade or embankment Base course materials were
obtained from 123 borrow pits along the roadway Surface course materials
which required processing were obtained from 9 borrow areas Appendix B
contains the Material Utilization Diagrams which show the sources of these
borrow materials and their utilization along the road Also included in Appendix
B are the Average Gradation Curves of the processed surface course materials
B WATER
Water for construction was obtained from 24 water wells drilled by the
Contractor Appendix C contains information on locations depth and yields
of the wells
VI PROTECT HISTORY
A GENERAL The engineers inspectors and materials technicians employed by TAMS
systematically inspected construction operations and sampled and tested mashy
terials being incorporated in the work to ensure compliance with contract reshy
quirements Each month a determination was made of the work accomplished
-5shy
and eligible for payments and pay quantities for the Contractors monthly
progress estimates were certified
The Engineers survey parties verified reference points established
by the Contractors personnel for vertical and horizontal control points estabshy
lished along the preliminary base line and verified limits of bush clearing
flagged by the Contractor After the final line was staked detailed cross shy
sections were taken for computation of pay quantities Check measurements
were made periodically to verify the construction performed by the Contractor
As sections of the Project were completed final measurements were taken and
as-built plans prepared
Periodic progress reports and charts were prepared for the Government
and AID throughout the construction phase
After substantial completion of the works in January1977 a final inshy
spection of the project was made On January 19 1977 a Certificate of
Completion was issued by the Engineer As required by the Contract the
six-month maintenance period commenced
A synopsis of the more important correspondence initiated or received
by the Consultant in connection with administration of the Contract is included
in Appendix D
B SEQUENCE OF EVENTS
During late July and early August1973 the Contractor began to mobilize
personnel at Pandamatenga preparatory to commencing construction of the main
camp facilities
A sub-contract for construction of the engineers facilities atd some
items of the Contractors camp was negotiated between Grove International
and Botzam Services of Livingstone Zambia During September 1973 the subshy
contractor mobilized men equipment and material at Pandamatenga and comshy
menced construction on main camp housing units
On September 20 1973 the Contractor having been denied access
through the Botswana-Rhodesia Border at Pandamatenga for mobilizing equipment
material and supplies decided to shift the main camp site to the vicinity of
Kazungula The camp site was established at Kilometer 3+400 on the Chobe
River By-Pass road approximately 8 Kilometers east of the village of Kasane
3 -6shy
During late October construction of housing shops offices wareshy
houses and ancillary facilities commenced at the relocated main camp site
The camp facilities were substantially completed by the end of March 1974
Temporary satellite camps were later established at Pandamatenga at Kilometer
105 and at Kilometer 63 on the Nata-Kazungula segment of the project
Mobilization of construction equipment personnel material and supplies
began in early October 1973 and continued through April 1974
During the remainder of 1973 the construction efforts were concentrated
on construction of the main camp site A small amount of clearing grubbing
and earthwork was accomplished on the Chobe River By-Pass Road and on the
northern end of the Nata-Kazungula road
1 Principal Construction Accomplishments During 1974
Clearing and Grubbing - 5366 hectares completed between
Kilometer 297 and Kilometer 169 on the Nata-Kazungula segment
of the project
- Earthworks - excavation and borrow quantities came to a total
of approximately 506500m with the major portion of this work
performed between Kilometer 297 and Kilometer 196 on the Nata-
Kazungula segment of the project
- Pipe culverts - installed 59 pipes ranging in size from 18 to 60
diameter for a total of 1129 linealmeters between Kilometer 297
and Kilometer 196 on the Nata-Kazungula segment and from
Kilometer 0+000 to Kilometer 3+500 on the Pandamatenga Access
Road
Base Course - approximately 113600m placed between Kilometer
297 and Kilometer 197 on the Nata-Kazungula segment and from
Kilometer 0+000 to Kilometer 2+350 on the Pandamatenga Access
Road
Surface Course - approximately 19000m was placed between
Kilometer 292 and Kilometer 273+500 on the Nata-Kazungula segment
5-7shyI
2 Principal Construction Accomplishments During 1975
- Clearing and Grubbing - 634 hectares completed between
Kilometer 169 and Kilometer 2+000 on the Nata-Kazungula
segment between Kilometer 0+000 and Kilometer 14+000
on the Chobe River By-Pass segment and from Kilometer 2+350
to Kilometer 5+275 on the Pandamatenga Access Road
- Earthworks - excavation and borrow quantities came to a total
of 379145m3 with the major share of this work performed
between Kilometer 196 and Kilometer 49+000 on the Nata-
Kazungula segment and on the Pandamatenga Access Road
- Pipe Culverts - 69 pipes were installed ranging in size from
18 to 60 in diameter for a total of 1308 lineal meters
between Kilometer 200 and Kilometer 65 on the Nata-Kazungula
segment and from Kilometer 0+000 to Kilometer 5+200 on the
Pandamatenga Access Road
Base Course - approximately 219000m was placed between
Kilometer 197 and Kilometer 57 on the Nata-Kazungula segment
and on the entire 52 kilometers of the Pandamatenga Access
Road
Surface Course - approximately 177 000m of surface material
placed between Kilometer 273 and Kilometer 130 on the Nata-
Kazungula segment
3 Principal Construction Accomplishments During 1976
- Clearing and Grubbing - completed 2188 hectares between
Kilometer 2+000 and Kildmeter 0+000 and between Kilometer
297+300 and Kilometer299+600 on the Nata-Kazungula segment
and between Kilometer 14+000 and Kilometer 65+000 on the
Chobe River By-Pass segment which completed this item of
work
- Earthworks - excavation and borrow quantities came to a total
of 235092m which completed this item of work
-8shy
Pipe Culverts - 36 pipes were installed ranging in size from
18 to 48 diameter for a total of 973 lineal meters The
major share of this work was performed on the Chobe River
By-Pass segment
Base Course- 206120m3 was placed on the Nata-Kazungula
road between Kilometer 57+600 and Kilometer 0+000 and between
Kilometer 297+300 and Kilometer 299+588 and on the Chobe River
By-Pass road between Kilometer 0+000 and Kilometer 65+048
Surface Course - 260878m placed between Kilometer 130+000
and Kilometer 0+000 on the Nata-Kazungula road and between
Kilometer 0+000 and Kilometer 65+048 on the Chobe River By-Pass
Road
4 Principal Construction Accomplishments During 1977
The Contractor continued to work on final clean-up and corrective
work in accordance with the punch list provided by the Engineer On January
19 1977 the Completion Certificate was issued with a list of outstanding
deficiencies attached These were rectified by the Contractor during the
early part of the six-rnnth maintenance period The Contractor in compliance
with the Engineers instructions installed 10 additional 18 diameter CMP
culverts on the Nata-Kazungula road between Kilometer 236 and Kilometer 238
Two additional pipes were installed at Kilometer 6+540 on the Chobe River
By-Pass Road Rock was placed on sand fill slopes and at culvert inlets and
outlets to guard against erosion on numerous sections of the Nata-Kazungula
Road and Chobe River By-Pass Road The Contractor maintained the project
until July 19 1977 when a Certificate of Maintenance was issued
C PROTECT SCHDULING AND DELAYS
On October 5 1973 as required by Clause 12 Part II-Conditions of
Particular Application of the Conditions of Contract - the Contractor submitted
his proposed construction schedule for the project The schedule was returned
to the Contractor on October 16 1973 for modifications It was resubmitted
and finally approved on March 19 1974
-9shy
In October 1974 the Contractor presented a revised construction schedule
It was not approved by the Engineer who informed the Contractor that the
actual rate of progress was far below that projected by the schedule and reshy
quested an explanation as to what steps were contemplated to bring progress
on the project up to schedule
On November 6 1974 the Contractor again presented a revised conshy
struction schedule reflecting a completion date beyond the contract period for
completing the Project The Contractor made reference to conditions which
had allegedly caused delays to progress on the Project and stated that claims
would be presented requesting time extension for completion of the Project
The revised schedule was not approved pending presentation by the Contractor
of all supporting details
By the end of December 1974 the Contractor had completed 29 percent
of the work then specified in the Contract as modified by ten change orders
This compared with 55 percent scheduled to be completed according to the
approved progress schedule
On February 27 1975 the Engineer notified the Contractor that progress
was continuing to fall further behind the approved construction schedule and
requested the Contractor to submit in writing his plans for bringing progress
up to schedule in compliance with pertinent provisions of the Contract On Tuly
24 1975 the Contractor again presented a revised construction schedule reflectshy
ing a completion date of August 31 1976 This schedule was accepted by
the Engineer in September 1975 with the provision that acceptance of the
schedule should in no way be construed as an approval for extension of time
for completion of the project
By the end of 1975 the Contractor had completed 63 percent of the work specified in the contract as compared with 73 percent projected in the revised
construction schedule
On March 11 1976 the Contractor presented the 6th revision of the
construction schedule reflecting a completion date of December 31 1976
This schedule is included herein as Figure 2 The schedule was accepted by
the Engineer on March 24 1976 with the provision that acceptance of this
schedule should in no manner be construed as an approval of extension of time
for completing the project
-0shy
LEGEND CONSTRUCTION PROGRESS CHART BOTSWANA-ZAMBIA HIGHWAY
WORK ELEMENT lt I
MOBILIZATION 7 T z ltgt 7gtlt74gtlaquo 7
GENERAL gt gt lt lt+ $ lt2740gt77
SURVEYS
AND SITE CLEARING
PREPARESUGRADE lt gt
7+47
I EARTHWORKS ~kgt1 E ~gt07 gt0gt0 ~laquolt gtgt~lt7laquogt 77gt
BASE COURSE
SURFACE COURSE ~lt 7ltgtlaquoD4
+4 7iA
gt
ltgt7 77 gtlt4lt
P
DRAINAGE I-shy___MAINTENANCEI I _ _ _ _
FACILITIES - -gt 7 7 7 7lt7 ltgttVViV77W7vV~7~
HIGHWAY HARDWARE lt
CHANGE ORDERS AND I
DAY WORKS lt
TOTAL
VII FINANCIAL SUMMARY
As indicated in Section I-B of this report the funds available (from
AID) for the construction of this project were in the amount of U S $16600000
The disbursements of monies for the construction and construction supervision
through May 31 1978 are summarized in Table 3 along with the original esshy
timated amounts for comparison
TABLE 3
Disbursements Through Original Estimated
May 31 1978 Amounts
US $ RandPula US $ RandPula
Construction Costs (Grove International See Table 5) 882317486 310970881 897784200 316082500
Change Orders (From Table 1) 4276898 - 95829606
Supervision of Construction (TAMS) 129796299 - 135468100 -
TOTALS 1016390683 406800487 1033252300 316082500
From original contracts and supplements through May 31 1978
Table 4 presents a summary of final construction costs including
those by Contract Pay Items disbursed to the Contractor (Grove International)
The above listed costs do not include back charges on the loan which
charges are not available to the Engineer
The Contractor has submitted a series of claims requesting extensions
of time and reimbursement for claimed additional costs These claims are
currently under review by the Engineer A supplemental report will be issued
by the Engineer after the Contractors claims have been resolved and will
include any additional costs and time extensions awarded to the Contractor
Assuming an average rate of exchange of 1000 Pula or 1000 Rand
equal to 1350 U S Dollars and neglecting bank charges the approximate
loan balance as of May 31 1978 was U S $940000
-12shy
An average conversion rate of exchange has been used to estimate
the loan balance since the actual rate varied and actual draw-down figures
are not available to the Engineer
At the time of Project commencement the currency of Botswana was
the Rand In August 1976 the Botswana Government changed over from the
Rand to the Pula as the official currency During the course of construction
local currency disbursements have been made to the Contractor in both Rand
and Pula
-13shy
--- =1m =- M Il-- M=M m -
Sheet 1 of 4TABLE 4 - SCHEDULE OF FINAL CONTRACT QUANTITIES
Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount RandPula
No Description Measure Final Quantities US $ RandPula US $
101 Mobilization Lump Sum 10000 57077200 58360600 -0shy
201 Engineers Staff Housing 2-Bedroom House Each 1 3333 1300000 272100 1300000 272100
202 Engineers Staff Housing 3-Bedroom House Each 3 10000 1400000 339300 4200000 1017900
203 Engineers Staff Housing Technicians House Each 4 10000 650000 130100 2600000 520400
204 Engineers Staff Housing Jr Staff Housing Each 16 10000 112500 19600 1800000 313600
205 Moving amp Re-erection of Engineers Staff Housing Each move NOT APPLICABLE
206 Engineers Main Office Lump Sum 10000 1800000 306300
207 Engineers Main Laboratory Lump Sum 10000 2600000 407700
208 Moving amp Re-erection of Engineers Main Office Each Move NOT A P L I CA B L E and Main Laboratory
209 Engineers Forward OfficeLaboratory Each 2 10000 766300 1532600 -0shy
210 Additional Surveying Office Laboratory and Prime Cost 69809 1500000 1047146 -0-Communication Equipment
211 Contractors Expenses and Profit on Percent 69809 25 261787 -0-Prime Cost Item 210
212 Provide and Maintain Vehicles for ihe Engineers Staff Vmonth 304 Vmonth 24000 17100 7296000 5198400
301 Basic Survey and Setting Out km 370590 km 48500 13400 17973600 4965905
302 Clear Heavy Bush Hectare 514075 ha 23200 7500 11926540 3855563
303 Cleat Light Bush Hectare 70053 ha 15500 5000 10858215 3502650
304 Clear Grassy Hectare 1775 ha 12400 4000 2201000 710000
401 Prepare Sand Subgrade for Embankment m2 3335443 m 2 011 006 36689873 20012658
402 Prepare Clay Subgrade for Embankment m2 408450 m 2 023 011 9394350 4492950
501 Construct Standard Embankment i3 865895 m3 117 047 101309715 40697065
3502 Construct Special Embankment m3 254779 m 196 074 49936684 18853646
030 384035 129450503 Excavate Unsuitable Material m3 4315 m3 089
601 Base Course m3 538854 m3 310 120 167044740 64662480
602 Overhaul of Base Course Material m3km 46462 m3kr 028 010 1300936 464620
701 Remove Overburden from Surface Course Borrow Pits m3 260056 m3 060 016 15603360 4160896
702 Surface Course m3 457260 m3 545 210 249206700 96024600
703 Haul of Surface Course Material m3kmn 6572330 m3kr 0102 0034 67037766 22345922
TABLE 4 (Continued) Sheet 2 of 4
Item No Description
Unit of Measure
Total Revised Final Quantities
Contract Unit Price US $ RandPula
Final Revised Contract Amount US $ RandPula
801
802
803
Excavation and Backfill for Cuiverts up to 48 inches in diameter
Excavations for foundations of Culverts 48 inches and over
Backfilling culverts 48 inches and over
m3
m3
m3
558512 m3
94946 m3
322010 m3
480
270
490
330
140
360
2680858
256352
1577849
1843090
132923
1159236
804 Nestable Galvanized Corrugated Metal Pipe 18 inches in diameter 14 USSG
PIPE LM 249963 LM 4380 820 10948379 2049697
END SECTIONS Each 388 each 6660 225 2584080 87300
805 Nestable Galvanized Corrugated Metal Pipe 24 inches in diameter 14 USSG
PIPE LM 28104 LM 5560 1100 1562582 309144
Supply additional 24 inch diam Pipe 114035
END SECTIONS Each 34 each 10200 800 345800 27200
Supply additional End Sections 30600
806 Nestable Galvanized Corrugated Metal Pipe 36 inches in diameter 12 USSG
PIPE LM 19506 LM 10500 1600 2048130 312096
END SECTIONS Each 28 each 27600 2100 772800 58800
807 Nestable Galvanized Corrugated Metal Pipe 48 inches in diameter 12 USSG
PIPE LM 11522 each 13500 2200 1555470 253484
Supply additional 48 inch diam Pipe 10480
END SECTIONS Each 10 each 76200 4300 762000 43000
808 Nestable Galvanized Corrugated Metal Pipe 60 inches in diameter 10 USSG
PIPE LM 48768 LM 20400 2700 9948672 1316736
Supply additional 60 inch diam Pipe 47510
809
810
811
Excavate inlet and outlet drains mitre ditches and roadway ditches
Sand-cement Pitching
Clay slope Protection
m3
m3
m2
477781 m3
276769 m3
NA
110
2300
030
3000
100
525559
636569
-0-
143334
830307
-0shy
Supplied but not installed
mi -blN mN -m~ m ml m min nmlW arm~ nn- a a a a1 al a
TABLE 4 (Continued) Sheet 3 of 4
Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount No Description
812 Supply Nestable Galvanized Corrugated
Metal Pipe 18 inches in diameter 14 USSG
PIPE
END SECTIONS
901 Construct Maintenance Facility Complex
902 Water Pump
903 Contractors Expenses and Profit on Prime Cost Item 902
1001 Road Signs
1002 Guide Posts
1003 Kilometre Posts
Dayworks
TOTAL-SCHEDULE OF QUANTITIES
a
0) CO I CO 2
TAMS Staff Hotel Accommodation
Air Conditioners TCN Houses
CO 3
CO 4
NA (Progress Payment Permanent Material)
Additional TCN Housing
SUB-TOTAL
CO 5 POL Escalation Cost
CO 6 POL Escalation Cost
CO 7 POL Escalation Cost
SUB-TOTAL
LESS OVERPAYMENT
TOTAL POL ESCALATION COST
CO 8 Interim Allowance (Wage)
CO 9 Wage Escalation Cost
SUB-TOTAL
LESS OVERPAYMENT
TOTAL WAGE ESCALATION COST
Measure
LM
Each
Lump Sum
PC Sum
25
Each
Each
Each
As directed
Each
Final Quantities
238 LM
0 each
98
284 each
900 each
182 each
100
100
100
NA
6
100
100
100
100
100
US $
3400
6700
8520
As Billed
650000
As Shown
As Shown
As Shown
As Shown
As Shown
RandPula
900000
1000
1450
1500
130100
US $
809200
-0-
13014800
-0-
-0-
2419680
-0-
-0-
5999421
882317486
376898
3900000
4276898
RandPula
-0shy
-0shy
7308700
255223
63806
284000
1305000
273000
-0shy
310970881
842138
5307
780600
1628045
575601
1815344
77277517
79668462
1661539
78006923
297802
16022556
16320358
125720
16194638
TABLE 4 (Continued)
Item No Description
Unit of Measure
Total Revised Final Quantities
Contract Unit Price US $ RandPula
Sheet 4 of 4
Final Revised Contract Amount US $ RandPula
CO 10
CO 11
CO 12
Road Reserve cleared way Chobe River By-pass (included under items 302 303 and 304)
Importation Additional Sheeps foot roller (included under item 101)
Minor realignment of roadway at Nata
TOTAL CONSTRUCTION COST
100
100
100
886594384 406800487
ishy
I I I I I I I I
APPENDIX A
I CONSTRUCTION EQUIPMENT
I I I I U I I I I I
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT
I Descqription
2 Chevrolet Impala Sedan
5 jeep-Wagoner
7 jeep-Wagoner
1 Chevrolet Vega
23 Chevrolet Pickup
19 Mack Tractor (T675-8W)
2 Chevrolet Flat Bed
5 Mack-Platform Stake (T426-3500)
1 Mack-2000 Gal Fuel (T426-3500)
4 Mack Dump Truck 10 cy
2 Chevrolet Dump Truck 5 cy
1 Mack-Birmingham Tandum Lowboy Trailer
2 Mack-Gindy 25 Ton Tandum Semi Trailer
8 Heil- P3S 303 cy Dump Trailer
I 7 Fruehauf-TEO-F3-R 10000 Gal Tanker
5 Fruehauf-TEO-F2-R 6500 Gal Tanker
5 Fruehauf-Tandum Axle Dolly
2 Barko 14000 Telescopic Crane
6 Cobey 1062 Wagon Trailer
1 Cedarapids 443 Commander Crusher
1 Peerless Portable Base Stabilisation Plant
2 Atlantic International Water Treatment Plant
6 Caterpillar 631-B TractorS631-B Scraper
7 Caterpillar D8-H Dozer
2 4
Caterpillar D9- Dozer Caterpillar D6-C Dozer
2 Caterpillar 12-F Grader
5 Caterpillar 14-E Grader
U A-i
1
I
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (Cont)
Quantity
4
1
4
11Raygo
1
S1 2
ICaterpillar-200KW 3
1
1
1
1
1
3
2 2
2
I
1
2
2
I
1 2
8
1
j 8
1 4
9
1
Description
Caterpillar 966 Loader
Trojan 4000 Loader
Raygo 400A Compactor Vibrator
410A Compactor Vibrator
Vibro Plus Vibrating Sheepsfoot Roller
Bros 10000 Compactor
Bros 6000 Compactor
Generator Caterpillar - 125KW Generator
Little Reddevil Generator
Kholer 3KW Generator
Kholer 2KW Generator
Detroit Diesel Generator (2D-32)
Kholer Generator (5CKM61)
Hobart GR-3 03 Welders w trolley
Worthington 365 Compressor Worthington 160 Compressor
Kellypower Tamper
John Deere 2700 Disc Harrow10 Cut
ohn Deere 1630 Disc Harrow 7 Cut
Worthington WS-55 Rock Drill
Alemite Portable Service Station
Graco Lube Ranger
Worthington Wagon Drill
Layne Bowler Deep Well Pump
Layne Bowler Pump only
4 Centrifugal Pump
2 Centrifugal Pump
Columbian Steel Water Tanks 20000 US Gal
A-2
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (contd)
Quanti
1I Description
Caterpillar Parallel Shank Ripper
2 Fleco Blade Rake
4 Chainsaw
3 Gardner-Denver Compressor
5 Aerotron Radio Transmitters $1203
7 Aerotron Radio Receivers $2 10
16 SSB Radio Transceivers $1340
8 Auxilliary Radio Transceivers $1340
2 Cevy 4 x 4 Pickup Truck 8 Chevy 2 x 4 Pickup Truck
1 L B Smith Cone Crusher
2 Ford 4 x 4 (1164-14C Tractor)
2 Bros Sheepsfoot Roller
1 Hyster Towed Vibratory Compactor
During 1975 and 1976 the Contractor added the following listed equipment
1 Caterpillar No 14 Motor Grader
1 Caterpillar No 966 Loader
1 Trojan No 4000 Loader
1 Cone Crushing Plant 3 ft Standard Fine Bowl with 4 Deck Screens
4 Conveyor Units
A-3
I 1 I I I U I I
APPENDIX B
I I SOILS AND MATERIALS
I I 1 I I I I I 1
APPENDIX B
SOILS AND MATERIALS
(a) General
The road pavement is composed basically of two layers the surface
course and base course overlaying a compacted subgrade or embankment
The sources and volumes of the surface course and base course materials
are indicated in the Materials Utilization Diagrams included as Figures B-i
through B-4
(b) Subgrade
The subgrade soil consists primarily of aeolian fine sand except
for approximately 36 kilometers of the road for which the subgrade is a pan material consisting of clay In the pan areas special 1 Om thick
embankments were constructed with plasticity and fineness control of material
The subgrade and embankment soils were compacted to a minimum of 90
of modified AASHTO compaction The measured mean relative compaction
obtained immediately after compaction of the subgrade was 935 of the modified AASHTO maximum density
(c) Base Course
The majority of the base course materials are derived from aeolian deposits ie fine sand with a trace to some silty clay The
remaining base bourse approximately 15 of the total was obtained from pits having a large component of gravel The 15cm thick base
course is bank run or blended material for which the amounts of fines
and plasticity were controlled The base course materials were obtained from 123 base borrow pits and compacted to a minimum 95 of modified AASHTO density The measured mean relative compaction
directly after construction was 96 of the modified AASHTO maximum
density
(d) Surface Course
The 15cm thick surface course is well graded sandy gravel with
some silty clay fraction The materials for the road segment from
Kilometer 0+000 to Kilometer 173+000 are derived from calcrete deposits
while the materials for the remaining portion are derived from weathered
3-1
bedrock The surface course has controlled gradation plasticity and
durability to obtain sufficient strength to reduce ravelling to a minimum
particularly during the dry season and to resist the wear of traffic
Surface course materials have been obtained by screening crushing
and blending materials from 9 borrow areas and were compacted to a
minimum of 98 of modified AASUTO maximum dry density The comshy
posite properties for each borrow pit are indicated in the Average
Gradation Ourvesincluded as Figures B-5 through B-13 Directly
after construction of the surface course the measured mean relative
compaction was 100 of the modified AASHTO maximum density
B-2
N A TA K A ZUN GU LA RO0A D 70 033 90 CC
00 00 0 0 0+I 03- 30L K
0 I I
M 3 100 0002L [2
_
MATERIALS UTILIZATION DIAGRAM Fiure -I
NATA - KAZUNGULA ROAD
+--- 121
y T
MATERIALS UTILIZATION DIAGRAM Fgure R-Z
NAT A - KAZ UN GULA ROAD
07 2 230K300 220 220 232 252
I 3 3 2
MATERIALS UTILIZATION DIAGRAM Figure 2-3
itLT-m
CHOBE RIVER BY-PASS ROAD 02__ Q___ 0 60 40 - 0 50 0 i
-F-CEL
-Tl J-II II
MATERIALS UTILIZATION DIAGRAM Figure B-4
3 SIEVE ANALYSIS SMI~ia VIII
IY UN In~ VI STAISRS SIEVE NUMBfh SUE9 - usuLguNuus O-- aoIiUl- I1
11I a to to 0 i oIIIa lf I
II
SN Cu ye B
II N
o
i B _ ___~ N II 1 l s - Curi e At-
I 2 I a 6 4 2 i5 4 3 2 a -
GRAIN I IZE MILTERS
SILT AND CLAY SOILS GRAVEL SAND
I NUMBE1RSAMPLE DEPTH LL KIE IPTIONIELEV P1 ECIT
A Composit 38 19 CrusherAverage Runof 192 samples
B Composit 33 17 Surface Course Blend asAverage of 236 samples placed
MDD 1960 kgm Los Angeles Abrasion = 42 Average Blend Added 15=
REPUBLIC OF BOTSWANA TI PPETTS-ASSETT-NcCAIThY-STRATTOU MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY BOTSWANA-ZAMBIA GRAIN SIZE DISTRIBUTION BY DmArTE Q76HIGHWAY j PIT 2A DOi FIGURE B-5
E ANLYSISSIEVE NALYSIS NI
OPEING - In jS PhIMS-SEVE iNRh3EN son - MILLIMETER
V11 6plusmn SSIEVE
6 i S 0-4 0 10 miUS) 3055 3 001mesa a
9 I I I - -
Crye B
S bull
1TCrii INN20 1 e A- NI deg I FIK 46591 2 a045 4 2 1115 5 2 6
GRIISZ IN MILLIMETERS
COACE iE NtIUM FI SILT AD CLAY SOILSGRAVEL SAND
5r IBSAMPLE DEPTH ELEV LLP1
A Composite 28 10 Crusher Run Average of 229 samples
B Composite 28 11 Surface Course Blend as Placed Average of 58 samples
2050 kgm3 Averaoe Blend Added shy
TIPPETTS-ASETT-NCCARTIY-STATTONREPUBLIC OF BOTSWANA NEW YORK NY
MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS
BRAIN SIZE DISTRIBUTION BY NCZ jAATE9 876BOTSWANA-ZAMBIA
HIGHWAY PIT 14 amp 14A OWN FIGURE B-6
i
S ANALYSIS 01 ANALYSIS
SIEVE - n -IIII- SIZ-MII- - IN i
It a s 1
Ue a -- e B
- 1 -I-[_I - I I I
6l51 10 8 $514 1 O is 05I I 21 8GANSZNILMTR OA RE Filo 9OA-1i 1DI UM F log S ILT AND CLAY SO ILS
GRAVEL nSAND
E--l I UNEASMPLEDEPlTH ELEV LL P1 KWKIPTION
A Composite 36 19 Crusher Run
Average of 116 Samples
B Composite 36 15 Surface Course Blend Average of 138 samples
H GHWA E SA 18 SILT ANDURCLA-SIL
3kgm Los Angeles Abrasion 28
Av agau Pnd AAd = 907 ITI UETT$-ABBTT-NcentcentARTNY-STRATTON
NEW YORK NY
REPUBLIC OF BOTSWANA
MINISTRY OF WORKS amp COM24UNICATIONSIT NINEERS1
I I MGIELI7 I 1 8AIIGIWAE
I
4
SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU
V 1 Oe 001l
- -r--I-I -- I
S E- -IN S
KI zz7llfl$zIIIti z I
low560
20
2
IGRAIN SIZE IN MILLIMETERS
COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS
GRAVEL SAND
SAMP DEPTH ELEV L P1 0NBERIIPTI
A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples
B Composit( 28 13 Surface Course Blend as Placed
Average of 85 samples
Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA
REPUBLIC OF BOTSWANA TI EfTTS-AIETT-NCARTY-STRATTOi ITTqTPI yen O WOVQ A n rn WTraTTn~lz ENGINEERS NEW YOlK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8
-D IUR IB
II SIEVE ANALYIIS 1411 I LYIlMll
[urn $11min - I I ITUSE IVV I - mampINimums1 -l0 n 001
a1 i 4 is s 0 aL w I 2 0665S a a 4 i 0i
-7sl
96---
I RI IE IN M IEER
CfliEI FIN g o au SIT SILFIN M40 5C o432 14593 ry B6
ver 7 samples
NUMBE NERPI
Ay I GRAIN SIZE IN MILLIMETR
5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND
A Q A- Aii dd d~A
IMUBEIRIIIIPIi
3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables
B Composit 26 13 Surface Course BlendU as Placed
Average of 79 samples
AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =
REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9
SIEVE ANALYSIS IMmv na awLYoia
SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I
I- 01 001
e---__
Ir1 -NIP_]
20
OA
$05 9 2
E
I
86543
I
7tN
2 1 65
_OAlEED t
5 2
FN
I
GRAIN SIZE IN MILLIMETERS
1 111I
NU BE GRAVEL
COARSE
I
MEDIUM
I SAND
FSILT AND CLAY SOILS
SAMPLE4 DEP EEY 1 SCBI1PTIORI
A
B
Composite
Composite
38
26
17
13
Crusher Run Basaltic Aggregate
Average of 176 samples
Surface Course Blend -s Placed Average of 58 samples
Average MDD = 2135 kgm Los Angeles Abrasion = 38
Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY
WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971
3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10
SIEVE ANIALYSIS lNVINI1111 ANALYSIS
I EV OPE IN - INI8 TOSIIEENN1-MLII
I
I - - i ii 0
I GRI SIZEto N OILS 1
I ANDLI IS
G VELIZE I
IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL
-APL ESN
DEPTH ELEY LL PI DESCRIPTIONNUSMBE
3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples
B Composite 26 13 Surface Course Blend as Placed Average of 58 samples
Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34
Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY
BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11
___ I
SIEVE ANALYSIS W11 ANKEm SIS
SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS
01 001
sodego
i i
U Ae
6 559 2 a65 3 2 1 6532 S
II GRAIN SIZE INMILLIMETERS
=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL
GRAVEL SN
I SAMPE DEPTH ELEV LL P)S DESCRIPTION
A omposite 28 10 Crusher Run
SAverage of 72 samples
B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples
Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20
REPUBLICUINISTRY 0OF OF
BOTSWANA WORKS amp COMMUNIGTIONS
TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12
I
SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM
-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U
I _
I1li
Ia _ Cu ve
N IC A11
IQI II
1 IG S IIIMETE
I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND
SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION
A Composite 34 15 Crusher Run Average of 74 samples
B Composite 29 12 Surface Course Blend as Placed
Average of 42 samples
MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15
REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA
ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N
NEW sy cKA
YORK NYT E-2 5 1 7 7
HIGHWAY PIT 32A Mwe FIGURE B-13
I I I I I I I I
APPENDIX C
I WATER WELL LOCATIONS
I I I I I I I I I
APPENDIX C WATER WELL LOCATIONS
WELL NO 3
Location Km 171 Lt of centerline 200 meters
Drill - 6 x 392
Ream - 8 x 92
Case - 6 x 84
Test - 24 Hours - 276
Pump 6000 G P H
Total depth - 392
Pumped at 150
24 Hr Drawdown - 3
Water Good
WELL NO 4
Location Km 175 - Lt of centerline 100 meters
Drill - 6 x 380
Ream - 8 x 82
Case - 7 x 82
Test - 276
Pump 1800 G P H
Total depth - 380
Pumped at 200
Drawdown 24 Hr - 100
Water Good
WELL NO 5 (Govt No 2436
Location Km 178 - Lt of centerline 115 meters
Test -276
Pump - 1400 G P H
Total depth - 160
Pumped at 140
24 Hr Drawdown - 60
Water Good C-1
WELL NO 6
Location Km 183 - Lt of centerline 60 meters
Drill - 6 x 436
Ream - 8 x 86
Case - 7 x 86
Test - 276
Pump - 500 G P H
Total depth - 436
Pumped at 250
24 Hr Drawdown - 150
Water Good
WELL NO 7 - (Govt No 2435)
Location Km 189 - Rt of centerline 100 meters
Clean amp Test
Pump - 6000 G P H
Pumped at 140
24 Hr Drawdown - 10
Water Good
WELL NO 14
Location Km 252 - Lt of centerline 100 meters
Drill - 6 x 250
Ream - 8 x 53
Case - 6 x 53
Test - 276
Pump - 6000 G P H
Total depth - 250
Pumped at 150
24 Hr Drawdown - 6
Water Good
C-2
WELL AT KM 256 MAINTENANCE FACILITY NO 3
Location Km 256 - Lt of centerline 200 meters
Depth - 100 feet
Water Rest Level - 42 feet
Depth Pump Set - 70 feet
24 Hr Test - 1800 G P H
WELL NO 15
Location Km 245 - Rt of centerline 40 meters
Drill - 6 x 260
Ream - 8 x 54
Case - 54
Test -276
Pump - 1500 G P H
Total depth - 260
Pumped at 200
24 Hr Drawdown - 140
Water Good
WELL NO 16 Location Km 236 -Rt of centerline 30 meters
Drill - 6 x 250
Ream - 8 x 22
Case - 6 x 22
Test - 276
Pump -6000 G P H
Total depth - 288
Pumped at 150
24 Hr Drawdown - 10
Water Good
C-3
WELL NO 17
Location Km 224 - Rt of centerline 30 meters
Drill - 10 x 89
Case - 8 x 85
Drill- 8x 43
Drill - 6 x 38
Case -6 x 132
Test - 276
Pump -2000 G P H
Total Depth - 170
Pumped at 100
24 Hr Drawdown - 11
Water Good
WELL NO 18
Location Km 217 - Lt of centerline 200 meters
Drill -i0 x 70
Case - 7 x 70
Drill - 7 x 52
Drill - 6 x 88
Case - 6 x 122
Test - 276
Pump 2400 G P H
Total depth - 210
Pumped at 200
24 Hr Drawdown - 140
Water Good
C-4
WELL NO 19
Location Km 213 - Lt of centerline 100 meters
Drill - 10 x 44
Case - 8 x 40
Drill - 8 x 76
Drill 6 x 130
Case - 6 x 120
Test - 276
Pump - 6000 G P H
Total depth - 210
Pumped at 60
24 Hr Drawdown - 10
Water Good
WELL NO 20
Location Km 143 - Rt of centerline 100 meters
Drill - 10 x 240
Case - 7 x 220
Drill -6 x 378
Case - 6 x 240
Case - 5 x 240
Test - 276
Pump -1500 G P H
Total depth - 618
Pumped at 460
24 Hr Drawdown - 105
Water slightly salty to taste but drinkable
C-5
WELL NO 23
Location Km 139 - Lt of centerline 100 meters
Drill - 12 x 290
Place amp Extract Case - 10 x 290
Drill - 8 x 30
Drill - 6 x 40
Case - 8 x 290
Case - 6 x 320
Test - 276
Pump - 1200 G P H
Total depth - 360
Pumped at 330
24 Hr Drawdown - 120
Water salty
WELL NO 24
Location Km 135 - Lt of centerline 500 meters
Drill - 12 x 270
Drill - 10 x 10
Case - 10 x 270
Drill -8 x 30
Case - 8 x 290
Case -6 x 310
Case - 5 x 320
Test -276
Pump -4000 +G P H
Total depth - 320
Pumped at 270
24 Hr Drawdown - 2
Water Salty
C-6
I
5
WELL KM 205 MAINTENANCE FACILITY NO 2
Location Km 105 - Lt of centerline 40 meters
Depth - 302 feet
~ Water Rest Level - 82 feet
Depth Pump Set - 150 feet
48 Hr Test - 3000 + G P H
WELL NO 26
Location Km 82 - Lt of centerline 100 meters
Drill - 12 x 145
5 -8 x145
Drill - 8 x 23
-Case
I Drill - 7 x 10
Case - 7 x 168
I Case - 6 x178
Test - 276
Pump - 1200 G P H
Total depth - 306
I Pumped at 140
24 Hr Drawdown - 35
I Water Good
C
I 0-7
WELL NO 27
Location Km 77 - Lt of centerline 100 meters
Drill - 12 x 174
Install amp Extract Case - 10 x 174
Case - 8 x 174
Drill - 9 x 68
Drill - 8 x 64
Case - 7 x 242
Case - 6 x 306
Test - 276
Pump - 4000 + G P H
Total Depth - 306
Pumpe at 240
24 Hr Drawdown - 0
Water Good
WELL NO 28- (Govt No 2465)
Location Km 63 - Rt of centerline 100 meters
Clean amp Extract Case - 300
Ream - 10 x 98
Ream - 8x 27
Ream - 6 x 12
Case - 8 x 98
Case - 6 x 125
Test - 276
Pump - 1000 + G P H
Total depth - 137
Pumped at 130
24 Hr Drawdown - 33
Water Good
C-8
WELL NO 30
Location Km 47 - Rt of centerline 400 meters
Drill - 12 x 132
Case - 10 x 89
Install amp Extract Case - 12 x 43
Drill - 10 x 117
Case - 7 x 242
Drill - 6 x 183
Install amp Extract Case - 6 x 408
Test - 276
Pump - 1000 G P H
Total depth - 408
Pumped at 160
24 Hr Drawdown - 77
Water Salty
WELL NO 31
- Lt of centerline 200 metersLocation Km 44
Drill - 12 x 110
Case - 10 x 100
Drill - 10 x 142
Case 8 x 142
Drill - 8 x 250
Case 7 x 392
Drill - 6 x 78
Test - 276
Pump - 3000 G P H
Total depth - 502
Pumped at 160
24 Hr Drawdown - 44
Water Salty
C-9
WELL NO 32
Location Km 42 - Lt of centerline 100 meters
Drill - 12 x 108
Case - 10 x 108
Drill - 10 x 212
Drill - 8 x 120
Case - 6 x 340
Case - 8 x 182
Test - 276
Pump - 3000 + G P H
Total depth - 448
Pumped at 160
24 Hr Drawdown - 20
Water Salty
WELL NO 34
Location Km 35 - Lt of centerline 200 meters
Drill - 12 x 230
Install amp Extract Case - 10 x 230
Drill - 8 x 30
Case -6 x 260
Drill - 6 x 160
Case -5 x 324
Case - 8 x 20
Test - 276
Pump -1000 + G P H
Total depth - 420
Pumped at 150
24 Hr Drawdown - 100
Water Salty
C-10
WELL NO 36
Location Km 7 N E along old track from Km 63
Drill - 12 x 180
Case - 10 x 180
Drill - 10 x 231
Case - 8 x 211
Drill- 8x 254
Case - 6 x 245
Test -276
Pump -4000 + G P H
Total depth - 265
Pumped at 180
24 Hr Drawdown - 0
Water Good
C-11
I 3 I 1 I I I I B j APPENDDC D
SYNOPSIS 0 KEY CORRESPONDENCE
3 DURING CONSTRUCTION
I pound I I I 1 I I
On September 1 1973 the Contractor confirmed the
estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts
On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project
On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be
obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated
On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine
On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation
On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension
On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension
On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval
On October 15 1973 the Engineer returned the construction progress schedule for correction
On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim
D-I
On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor
On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project
On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25
On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter
On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents
On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract
On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised
On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading
On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule
On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request
On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period
D-2
On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report
On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material
On August 19 1974 the Contractor submitted an updated construction progress schedule for approval
On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases
On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor
On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor
On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project
On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course
On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country
On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course
On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions
On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule
On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress
D-3
On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract
On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana
On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor
On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion
On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations
On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases
On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season
On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees
On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections
On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project
On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course
On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project
On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract
D-4
October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request
On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor
On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620
On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project
On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y
completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense
On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted
On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project
On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim
On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic
On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor
On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976
D-5
On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time
On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares
On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material
On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500
On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor
On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula
On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana
OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected
On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road
On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road
Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10
On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued
On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced
On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091
On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091
Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued
D-6
I I IUUU U U UU I U
E PROJECT PHOTOGRAPHS
I IIIU U I
I Crushing Plants Surface Course
Pit 2A
Pug Mill Blending Surface Course
Pit 25A
II Surface Course
Pit 25A
UURYPTOERTOSE Pug Mil Blending
Road Reserve Bush Clearing
Km 242
U
Embankment Construction Km 287
IN
Road Construction Water Supply
Km 189
ROADWAY UNDER CONSTRUTION
II
E-2
Stockpiling Material Base Course
Special Embankment Construction Km 232
Watering of Embankment Km 257
ROADWAY UNDER CONSTRUCTION E-3
Culvert Assembly
Twin Culvert with Sand-Cement Pitching
Multiple Culverts with Sand-Cement Pitching
CULVERT INSTALLATIONS E- 4
AT Km 25
AT Km 194
Emergency Landing Strip Kra 2605
FINISHED ROADWAY E- 5
AT Km 286
AT Chobe By-Pass Junction Km 297
I Chobe By-Pass Road Near Ngoma Bridge
E-6FINISHED ROADWAY
TABLEOF CONTENTS
PAGE
I INTRODUCTION I A DESCRIPTION OF PROJECT 1 B FUNDING 2 C CONTRACTUAL ARRANGEMENTS 2 D MODIFICATIONS OF CONTRACT 2
II STAFFING 4
III TRAINING 4
IV CONSTRUCTION EQUIPMENT 4
V MATERIALS UTILIZED 5 A SOILS 5 B WATER 5
VI PROTECT HISTORY 5 A GENERAL 5 B SEQUENCE OF EVENTS 6 C PROJECT SCHEDULING AND DELAYS 9 D REMEDIAL ACTION 11 E PICTORIAL HISTORY 11
VII FINANCIAL SUMMARY 12
APPENDICES A CONSTRUCTION EQUIPMENT B SOILS AND MATERIALS C WATER WELL LOCATIONS D SYNOPSIS OF KEY CORRESPONDENCE E PROJECT PHOTOGRAPHS
LIST OF FIGURES
FIG 1 LOCATION MAP
FIG 2 CONSTRUCTION PROGRESS CHART
FIG B-i THRU B-4 MATERIALS UTILIZATION DIAGRAMS
FIG B-5 THRU B-13 AVERAGE GRADATION CURVES
UNITED STATES GOVERNMENT INSTRUCTIONS
Subject
2- a emo Final Report Botswana -Zambia Road Project
use routing symbols whenever possible
SENDER Use brief informal language Conserve space Forward original and one copy
RECEIVER Reply below the message keep one
copy return one copy
DATE OF MESSAGE Routing Symbol
TO
4 fiSENGR CampRSC No 8 Rm -507 SA-11I AID Washington DC 20523a
kl7
= dTUei
TITLE OF-ORIGINATO~R-D0
-FOLD-INITIAL MESSAGE
Chief Engineer Hl)S0 -FOLD--
Enclosed please Road Project
find 8 copies of the Final Report on Botswana - Zambia
REPLY MESSAGE
DATE OF REPLY Routing Symbol
From fDanald W Reilly USA=h to Kenya
PO Box 30261 Nairobi Kenya
101878 SIGNATURE OF REPLIER
Palmer Stearns
TITLE OF REPLIER
DSENGR
5027-104 1 TO BE RETAINED BY ADDRESSEE
Civil Engineer OPTIONAL FORM 27
JULY 1973 GSA FPMR (41 CFR) 101-116
3m ZAMBIA
I ANGOLA GULN - KASANEI
IGOI THE PROJECT
APANIDAMATENGA
R ES8A
BOSA AZAMIATR
B 0 T S A N APO
SERULI SELIBI
LEPXEPE AIG R 1ATINS DRIFT
TSHANER EP 0O F
MOLEPOLOLE
W bull PLOBATSE
l--
TSMABON
AMATuLASA LEGEND
PROJECT ROAD
bull MAIN ROADS -MAIN FEEDER ROADS
SECONDARY ROADS
-= --
BOTSWANA -ZAMBIA LOCATION MAP
FIGURE 1
ROAD
I INTRODUCTION
This is the final report on the construction of the Botswana-Zambia
Highway Project accomplished between April 25 1976 and January 19 1977
The report has been prepared in accordance with Guidelines for Preparing
Final Report dated September 30 1963 as issued by United States Agency for
International Development
A DESCRIPTION OF PROJECT
The Project consists of three sections of all-weather two-lane highshy
way with a total length of 370 kilometers including
1) The Nata-Kazungula section approximately 300 kilometers
in length beginning at Nata (See Figure 1) on the Francistown
Nata road and extending north west to the existing ferry cross shy
ing to Zambia on the Zambezi River at Kazungula
2) The Chobe River By-Pass section approximately 65 kilometers
in length beginning near Kazungula at Kilometer 2973 on the
Nata-Kazungula highway and extending south west skirting
the town of Kasane through the Chobe National Park to the
bridge across the Chobe River at Ngoma
3) The Pandamatena Access Road 5 kilometers in length
beginning at approximately Kilometer 198 on the Nata-Kazungula
highway and extending east to the village of Pandamatenga
on the Botswana-Rhodesia border
Construction work included clearing and grubbing of 1392 hectares
earthwork of approximately 1120000 cubic meters 3400 meters of culvert
1538800 cubic meters of base course and 457200 cubic meters of surface
course
The project design was performed under an agreement dated June 15
1971 for professional services between the Government of the Republic of
Botswana and Tippetts-Abbett-McCarthy-Stratton of New York U S A
-1shy
B FUNDING
Funds for construction and construction supervision of the Project
were provided by loan agreements between the Government of the Republic of
Botswana and the United States of America acting through the Agency for
International Development (AID) The funds allocated were in the amount
of US $16600000 and were derived from the following sources
-U S $12600000 AID Loan No 690-H-001
-U S $ 4000000 First Amendment No 690-H-001A
C CONTRACTUAL ARRANGEMENTS
A contract for construction of the Botswana-Zambia Highway Project
was signed on Tune 26 1973 between the Government of the Republic of Botswana
and Grove International Corporation and Grove Shepherd Wilson and Kruge Inc
a joint venture for an estimated total cost of construction of US $897784200
and Rand 316082500 The contract provided for completion of the project
by April 25 1976 a 975 day period from Notice to Proceed given on August 22
1973
There were two amendments to the contract both dealing with the condishy
tions and limits for Off-Shelf purchases
A contract for supervision of construction was entered into by the Government
of the Republic of Botswana and Tippetts -Abbett-McCarthy-Stratton (TAMS) in
the form of a supplement to the basic agreement for design of the project The
supplemental agreement was dated July 2 1973 Two amendments the first
dated September 29 1976 and the second dated July 26 1977 extended the
the time for completion and modified the original estimate for cost of inspection
services
D MODIFICATIONS OF CONTR4tCT
During the course of construction twelve Change Orders approved
and signed by the Government were issued These orders are briefly described
in Table 1
-2shy
5307
TABLE 1 CHANGE ORDERS
Change Order Cost No Purpose US$ RandPula
1 Hotel rentals for Engineers staff while awaiting completion of housing units 842138
2 Additional air-conditioning units for staff housing 376898
3 Arrangements for monthly advance progress payments for permanent materials on site shy
4 Addition to the number of TAMS staff housing units 3900000 780600
5 For escalation of POL costs between 11 November 1973 and 11 February 1974 575601
6 For additional escalation of POL costs between 11 February 1974 and 14 May 1974 1815344
7 For additional escalation of POL costs between 14 May 1974 and 19 July 1974 77277517
LESS OVERPAYMENT (-)1661539
8 Interim allowance by GOB authorization to all employees to maximum rate of R500 per month between April 1973 and March 1974 297802
9 Escalation of minimum wage rates for field personnel 16022556
LESS OVERPAYMENT (-)125720
10 Reduction InRoad Reserve clearing on Costs included in Chobe By-Pass Road amounts in pay
items 302 303 and 304
11 For increase in mobilization costs to Costs included in cover importation of additional compaction amounts in equipment pay item 101
12 For minor realignment of roadway at Costs included in Nata contract pay items
TOTALS 4276898 95829606
-3shy
II STAFFING Excluding the mobilization and demobilization periods the major conshy
struction efforts took place during the calendar years 1974 1975 and 1976
A summary of the project staffing is presented in Table 2
TABLE 2
AverageMaximum Staffing Levels
Contractors Staff Engineers Staff
YearSource US Botswana TCN Code 941 US Botswana TCN
1974 17 232 2 22 4 11 9 1975 18 302 3 43 4 12 9
1976 15 290 3 40 4 13 7
Maximum 20 359 5 49 4 14 9
A paving specialist visited the Project in December 1973 and une 1974
in connection with proposals for upgrading the Project and again in March 1975
in connection with selection of material for the surface course
A partner from the Consultants home office made periodic visits to the
Project sites
III TRAINING
The Contractor trained Botswana Staff as drivers equipment operators
and oilers surveyors soils technicians mechanics helpers stewards and
maintenance workers
The Engineer trained Botswana Staff as soils technicians surveyors
drivers draftsmen and office clerical workers
IV CONSTRUCTION EQUIPMENT
In compliance with a requirement of the Contract Documents the Conshy
tractor presented a schedule of major plant and equipment to be used on the
Project Some adjustments were made to the listing as the job progressed
-4shy
Advances for the purchase of new items (materials construction plant
equipment tools spare parts maintenance supplies and buildings furniture
and equipment for the Contractors and Engineers camps) totaling U S
$124443700 and local currency Rand 225000 were made available to the
Contractor as provided for by the Contract Documents Reimbursement of
these advances were made in January1974 in accordance with the Contract
requirements
The major items of construction and shop equipment imported by the
Contractor for use on the project are listed in Appendix A
V MATERIALS UTILIZED
A SOILS
The formation consists of two layers the surface and base courses
placed on a compacted subgrade or embankment Base course materials were
obtained from 123 borrow pits along the roadway Surface course materials
which required processing were obtained from 9 borrow areas Appendix B
contains the Material Utilization Diagrams which show the sources of these
borrow materials and their utilization along the road Also included in Appendix
B are the Average Gradation Curves of the processed surface course materials
B WATER
Water for construction was obtained from 24 water wells drilled by the
Contractor Appendix C contains information on locations depth and yields
of the wells
VI PROTECT HISTORY
A GENERAL The engineers inspectors and materials technicians employed by TAMS
systematically inspected construction operations and sampled and tested mashy
terials being incorporated in the work to ensure compliance with contract reshy
quirements Each month a determination was made of the work accomplished
-5shy
and eligible for payments and pay quantities for the Contractors monthly
progress estimates were certified
The Engineers survey parties verified reference points established
by the Contractors personnel for vertical and horizontal control points estabshy
lished along the preliminary base line and verified limits of bush clearing
flagged by the Contractor After the final line was staked detailed cross shy
sections were taken for computation of pay quantities Check measurements
were made periodically to verify the construction performed by the Contractor
As sections of the Project were completed final measurements were taken and
as-built plans prepared
Periodic progress reports and charts were prepared for the Government
and AID throughout the construction phase
After substantial completion of the works in January1977 a final inshy
spection of the project was made On January 19 1977 a Certificate of
Completion was issued by the Engineer As required by the Contract the
six-month maintenance period commenced
A synopsis of the more important correspondence initiated or received
by the Consultant in connection with administration of the Contract is included
in Appendix D
B SEQUENCE OF EVENTS
During late July and early August1973 the Contractor began to mobilize
personnel at Pandamatenga preparatory to commencing construction of the main
camp facilities
A sub-contract for construction of the engineers facilities atd some
items of the Contractors camp was negotiated between Grove International
and Botzam Services of Livingstone Zambia During September 1973 the subshy
contractor mobilized men equipment and material at Pandamatenga and comshy
menced construction on main camp housing units
On September 20 1973 the Contractor having been denied access
through the Botswana-Rhodesia Border at Pandamatenga for mobilizing equipment
material and supplies decided to shift the main camp site to the vicinity of
Kazungula The camp site was established at Kilometer 3+400 on the Chobe
River By-Pass road approximately 8 Kilometers east of the village of Kasane
3 -6shy
During late October construction of housing shops offices wareshy
houses and ancillary facilities commenced at the relocated main camp site
The camp facilities were substantially completed by the end of March 1974
Temporary satellite camps were later established at Pandamatenga at Kilometer
105 and at Kilometer 63 on the Nata-Kazungula segment of the project
Mobilization of construction equipment personnel material and supplies
began in early October 1973 and continued through April 1974
During the remainder of 1973 the construction efforts were concentrated
on construction of the main camp site A small amount of clearing grubbing
and earthwork was accomplished on the Chobe River By-Pass Road and on the
northern end of the Nata-Kazungula road
1 Principal Construction Accomplishments During 1974
Clearing and Grubbing - 5366 hectares completed between
Kilometer 297 and Kilometer 169 on the Nata-Kazungula segment
of the project
- Earthworks - excavation and borrow quantities came to a total
of approximately 506500m with the major portion of this work
performed between Kilometer 297 and Kilometer 196 on the Nata-
Kazungula segment of the project
- Pipe culverts - installed 59 pipes ranging in size from 18 to 60
diameter for a total of 1129 linealmeters between Kilometer 297
and Kilometer 196 on the Nata-Kazungula segment and from
Kilometer 0+000 to Kilometer 3+500 on the Pandamatenga Access
Road
Base Course - approximately 113600m placed between Kilometer
297 and Kilometer 197 on the Nata-Kazungula segment and from
Kilometer 0+000 to Kilometer 2+350 on the Pandamatenga Access
Road
Surface Course - approximately 19000m was placed between
Kilometer 292 and Kilometer 273+500 on the Nata-Kazungula segment
5-7shyI
2 Principal Construction Accomplishments During 1975
- Clearing and Grubbing - 634 hectares completed between
Kilometer 169 and Kilometer 2+000 on the Nata-Kazungula
segment between Kilometer 0+000 and Kilometer 14+000
on the Chobe River By-Pass segment and from Kilometer 2+350
to Kilometer 5+275 on the Pandamatenga Access Road
- Earthworks - excavation and borrow quantities came to a total
of 379145m3 with the major share of this work performed
between Kilometer 196 and Kilometer 49+000 on the Nata-
Kazungula segment and on the Pandamatenga Access Road
- Pipe Culverts - 69 pipes were installed ranging in size from
18 to 60 in diameter for a total of 1308 lineal meters
between Kilometer 200 and Kilometer 65 on the Nata-Kazungula
segment and from Kilometer 0+000 to Kilometer 5+200 on the
Pandamatenga Access Road
Base Course - approximately 219000m was placed between
Kilometer 197 and Kilometer 57 on the Nata-Kazungula segment
and on the entire 52 kilometers of the Pandamatenga Access
Road
Surface Course - approximately 177 000m of surface material
placed between Kilometer 273 and Kilometer 130 on the Nata-
Kazungula segment
3 Principal Construction Accomplishments During 1976
- Clearing and Grubbing - completed 2188 hectares between
Kilometer 2+000 and Kildmeter 0+000 and between Kilometer
297+300 and Kilometer299+600 on the Nata-Kazungula segment
and between Kilometer 14+000 and Kilometer 65+000 on the
Chobe River By-Pass segment which completed this item of
work
- Earthworks - excavation and borrow quantities came to a total
of 235092m which completed this item of work
-8shy
Pipe Culverts - 36 pipes were installed ranging in size from
18 to 48 diameter for a total of 973 lineal meters The
major share of this work was performed on the Chobe River
By-Pass segment
Base Course- 206120m3 was placed on the Nata-Kazungula
road between Kilometer 57+600 and Kilometer 0+000 and between
Kilometer 297+300 and Kilometer 299+588 and on the Chobe River
By-Pass road between Kilometer 0+000 and Kilometer 65+048
Surface Course - 260878m placed between Kilometer 130+000
and Kilometer 0+000 on the Nata-Kazungula road and between
Kilometer 0+000 and Kilometer 65+048 on the Chobe River By-Pass
Road
4 Principal Construction Accomplishments During 1977
The Contractor continued to work on final clean-up and corrective
work in accordance with the punch list provided by the Engineer On January
19 1977 the Completion Certificate was issued with a list of outstanding
deficiencies attached These were rectified by the Contractor during the
early part of the six-rnnth maintenance period The Contractor in compliance
with the Engineers instructions installed 10 additional 18 diameter CMP
culverts on the Nata-Kazungula road between Kilometer 236 and Kilometer 238
Two additional pipes were installed at Kilometer 6+540 on the Chobe River
By-Pass Road Rock was placed on sand fill slopes and at culvert inlets and
outlets to guard against erosion on numerous sections of the Nata-Kazungula
Road and Chobe River By-Pass Road The Contractor maintained the project
until July 19 1977 when a Certificate of Maintenance was issued
C PROTECT SCHDULING AND DELAYS
On October 5 1973 as required by Clause 12 Part II-Conditions of
Particular Application of the Conditions of Contract - the Contractor submitted
his proposed construction schedule for the project The schedule was returned
to the Contractor on October 16 1973 for modifications It was resubmitted
and finally approved on March 19 1974
-9shy
In October 1974 the Contractor presented a revised construction schedule
It was not approved by the Engineer who informed the Contractor that the
actual rate of progress was far below that projected by the schedule and reshy
quested an explanation as to what steps were contemplated to bring progress
on the project up to schedule
On November 6 1974 the Contractor again presented a revised conshy
struction schedule reflecting a completion date beyond the contract period for
completing the Project The Contractor made reference to conditions which
had allegedly caused delays to progress on the Project and stated that claims
would be presented requesting time extension for completion of the Project
The revised schedule was not approved pending presentation by the Contractor
of all supporting details
By the end of December 1974 the Contractor had completed 29 percent
of the work then specified in the Contract as modified by ten change orders
This compared with 55 percent scheduled to be completed according to the
approved progress schedule
On February 27 1975 the Engineer notified the Contractor that progress
was continuing to fall further behind the approved construction schedule and
requested the Contractor to submit in writing his plans for bringing progress
up to schedule in compliance with pertinent provisions of the Contract On Tuly
24 1975 the Contractor again presented a revised construction schedule reflectshy
ing a completion date of August 31 1976 This schedule was accepted by
the Engineer in September 1975 with the provision that acceptance of the
schedule should in no way be construed as an approval for extension of time
for completion of the project
By the end of 1975 the Contractor had completed 63 percent of the work specified in the contract as compared with 73 percent projected in the revised
construction schedule
On March 11 1976 the Contractor presented the 6th revision of the
construction schedule reflecting a completion date of December 31 1976
This schedule is included herein as Figure 2 The schedule was accepted by
the Engineer on March 24 1976 with the provision that acceptance of this
schedule should in no manner be construed as an approval of extension of time
for completing the project
-0shy
LEGEND CONSTRUCTION PROGRESS CHART BOTSWANA-ZAMBIA HIGHWAY
WORK ELEMENT lt I
MOBILIZATION 7 T z ltgt 7gtlt74gtlaquo 7
GENERAL gt gt lt lt+ $ lt2740gt77
SURVEYS
AND SITE CLEARING
PREPARESUGRADE lt gt
7+47
I EARTHWORKS ~kgt1 E ~gt07 gt0gt0 ~laquolt gtgt~lt7laquogt 77gt
BASE COURSE
SURFACE COURSE ~lt 7ltgtlaquoD4
+4 7iA
gt
ltgt7 77 gtlt4lt
P
DRAINAGE I-shy___MAINTENANCEI I _ _ _ _
FACILITIES - -gt 7 7 7 7lt7 ltgttVViV77W7vV~7~
HIGHWAY HARDWARE lt
CHANGE ORDERS AND I
DAY WORKS lt
TOTAL
VII FINANCIAL SUMMARY
As indicated in Section I-B of this report the funds available (from
AID) for the construction of this project were in the amount of U S $16600000
The disbursements of monies for the construction and construction supervision
through May 31 1978 are summarized in Table 3 along with the original esshy
timated amounts for comparison
TABLE 3
Disbursements Through Original Estimated
May 31 1978 Amounts
US $ RandPula US $ RandPula
Construction Costs (Grove International See Table 5) 882317486 310970881 897784200 316082500
Change Orders (From Table 1) 4276898 - 95829606
Supervision of Construction (TAMS) 129796299 - 135468100 -
TOTALS 1016390683 406800487 1033252300 316082500
From original contracts and supplements through May 31 1978
Table 4 presents a summary of final construction costs including
those by Contract Pay Items disbursed to the Contractor (Grove International)
The above listed costs do not include back charges on the loan which
charges are not available to the Engineer
The Contractor has submitted a series of claims requesting extensions
of time and reimbursement for claimed additional costs These claims are
currently under review by the Engineer A supplemental report will be issued
by the Engineer after the Contractors claims have been resolved and will
include any additional costs and time extensions awarded to the Contractor
Assuming an average rate of exchange of 1000 Pula or 1000 Rand
equal to 1350 U S Dollars and neglecting bank charges the approximate
loan balance as of May 31 1978 was U S $940000
-12shy
An average conversion rate of exchange has been used to estimate
the loan balance since the actual rate varied and actual draw-down figures
are not available to the Engineer
At the time of Project commencement the currency of Botswana was
the Rand In August 1976 the Botswana Government changed over from the
Rand to the Pula as the official currency During the course of construction
local currency disbursements have been made to the Contractor in both Rand
and Pula
-13shy
--- =1m =- M Il-- M=M m -
Sheet 1 of 4TABLE 4 - SCHEDULE OF FINAL CONTRACT QUANTITIES
Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount RandPula
No Description Measure Final Quantities US $ RandPula US $
101 Mobilization Lump Sum 10000 57077200 58360600 -0shy
201 Engineers Staff Housing 2-Bedroom House Each 1 3333 1300000 272100 1300000 272100
202 Engineers Staff Housing 3-Bedroom House Each 3 10000 1400000 339300 4200000 1017900
203 Engineers Staff Housing Technicians House Each 4 10000 650000 130100 2600000 520400
204 Engineers Staff Housing Jr Staff Housing Each 16 10000 112500 19600 1800000 313600
205 Moving amp Re-erection of Engineers Staff Housing Each move NOT APPLICABLE
206 Engineers Main Office Lump Sum 10000 1800000 306300
207 Engineers Main Laboratory Lump Sum 10000 2600000 407700
208 Moving amp Re-erection of Engineers Main Office Each Move NOT A P L I CA B L E and Main Laboratory
209 Engineers Forward OfficeLaboratory Each 2 10000 766300 1532600 -0shy
210 Additional Surveying Office Laboratory and Prime Cost 69809 1500000 1047146 -0-Communication Equipment
211 Contractors Expenses and Profit on Percent 69809 25 261787 -0-Prime Cost Item 210
212 Provide and Maintain Vehicles for ihe Engineers Staff Vmonth 304 Vmonth 24000 17100 7296000 5198400
301 Basic Survey and Setting Out km 370590 km 48500 13400 17973600 4965905
302 Clear Heavy Bush Hectare 514075 ha 23200 7500 11926540 3855563
303 Cleat Light Bush Hectare 70053 ha 15500 5000 10858215 3502650
304 Clear Grassy Hectare 1775 ha 12400 4000 2201000 710000
401 Prepare Sand Subgrade for Embankment m2 3335443 m 2 011 006 36689873 20012658
402 Prepare Clay Subgrade for Embankment m2 408450 m 2 023 011 9394350 4492950
501 Construct Standard Embankment i3 865895 m3 117 047 101309715 40697065
3502 Construct Special Embankment m3 254779 m 196 074 49936684 18853646
030 384035 129450503 Excavate Unsuitable Material m3 4315 m3 089
601 Base Course m3 538854 m3 310 120 167044740 64662480
602 Overhaul of Base Course Material m3km 46462 m3kr 028 010 1300936 464620
701 Remove Overburden from Surface Course Borrow Pits m3 260056 m3 060 016 15603360 4160896
702 Surface Course m3 457260 m3 545 210 249206700 96024600
703 Haul of Surface Course Material m3kmn 6572330 m3kr 0102 0034 67037766 22345922
TABLE 4 (Continued) Sheet 2 of 4
Item No Description
Unit of Measure
Total Revised Final Quantities
Contract Unit Price US $ RandPula
Final Revised Contract Amount US $ RandPula
801
802
803
Excavation and Backfill for Cuiverts up to 48 inches in diameter
Excavations for foundations of Culverts 48 inches and over
Backfilling culverts 48 inches and over
m3
m3
m3
558512 m3
94946 m3
322010 m3
480
270
490
330
140
360
2680858
256352
1577849
1843090
132923
1159236
804 Nestable Galvanized Corrugated Metal Pipe 18 inches in diameter 14 USSG
PIPE LM 249963 LM 4380 820 10948379 2049697
END SECTIONS Each 388 each 6660 225 2584080 87300
805 Nestable Galvanized Corrugated Metal Pipe 24 inches in diameter 14 USSG
PIPE LM 28104 LM 5560 1100 1562582 309144
Supply additional 24 inch diam Pipe 114035
END SECTIONS Each 34 each 10200 800 345800 27200
Supply additional End Sections 30600
806 Nestable Galvanized Corrugated Metal Pipe 36 inches in diameter 12 USSG
PIPE LM 19506 LM 10500 1600 2048130 312096
END SECTIONS Each 28 each 27600 2100 772800 58800
807 Nestable Galvanized Corrugated Metal Pipe 48 inches in diameter 12 USSG
PIPE LM 11522 each 13500 2200 1555470 253484
Supply additional 48 inch diam Pipe 10480
END SECTIONS Each 10 each 76200 4300 762000 43000
808 Nestable Galvanized Corrugated Metal Pipe 60 inches in diameter 10 USSG
PIPE LM 48768 LM 20400 2700 9948672 1316736
Supply additional 60 inch diam Pipe 47510
809
810
811
Excavate inlet and outlet drains mitre ditches and roadway ditches
Sand-cement Pitching
Clay slope Protection
m3
m3
m2
477781 m3
276769 m3
NA
110
2300
030
3000
100
525559
636569
-0-
143334
830307
-0shy
Supplied but not installed
mi -blN mN -m~ m ml m min nmlW arm~ nn- a a a a1 al a
TABLE 4 (Continued) Sheet 3 of 4
Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount No Description
812 Supply Nestable Galvanized Corrugated
Metal Pipe 18 inches in diameter 14 USSG
PIPE
END SECTIONS
901 Construct Maintenance Facility Complex
902 Water Pump
903 Contractors Expenses and Profit on Prime Cost Item 902
1001 Road Signs
1002 Guide Posts
1003 Kilometre Posts
Dayworks
TOTAL-SCHEDULE OF QUANTITIES
a
0) CO I CO 2
TAMS Staff Hotel Accommodation
Air Conditioners TCN Houses
CO 3
CO 4
NA (Progress Payment Permanent Material)
Additional TCN Housing
SUB-TOTAL
CO 5 POL Escalation Cost
CO 6 POL Escalation Cost
CO 7 POL Escalation Cost
SUB-TOTAL
LESS OVERPAYMENT
TOTAL POL ESCALATION COST
CO 8 Interim Allowance (Wage)
CO 9 Wage Escalation Cost
SUB-TOTAL
LESS OVERPAYMENT
TOTAL WAGE ESCALATION COST
Measure
LM
Each
Lump Sum
PC Sum
25
Each
Each
Each
As directed
Each
Final Quantities
238 LM
0 each
98
284 each
900 each
182 each
100
100
100
NA
6
100
100
100
100
100
US $
3400
6700
8520
As Billed
650000
As Shown
As Shown
As Shown
As Shown
As Shown
RandPula
900000
1000
1450
1500
130100
US $
809200
-0-
13014800
-0-
-0-
2419680
-0-
-0-
5999421
882317486
376898
3900000
4276898
RandPula
-0shy
-0shy
7308700
255223
63806
284000
1305000
273000
-0shy
310970881
842138
5307
780600
1628045
575601
1815344
77277517
79668462
1661539
78006923
297802
16022556
16320358
125720
16194638
TABLE 4 (Continued)
Item No Description
Unit of Measure
Total Revised Final Quantities
Contract Unit Price US $ RandPula
Sheet 4 of 4
Final Revised Contract Amount US $ RandPula
CO 10
CO 11
CO 12
Road Reserve cleared way Chobe River By-pass (included under items 302 303 and 304)
Importation Additional Sheeps foot roller (included under item 101)
Minor realignment of roadway at Nata
TOTAL CONSTRUCTION COST
100
100
100
886594384 406800487
ishy
I I I I I I I I
APPENDIX A
I CONSTRUCTION EQUIPMENT
I I I I U I I I I I
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT
I Descqription
2 Chevrolet Impala Sedan
5 jeep-Wagoner
7 jeep-Wagoner
1 Chevrolet Vega
23 Chevrolet Pickup
19 Mack Tractor (T675-8W)
2 Chevrolet Flat Bed
5 Mack-Platform Stake (T426-3500)
1 Mack-2000 Gal Fuel (T426-3500)
4 Mack Dump Truck 10 cy
2 Chevrolet Dump Truck 5 cy
1 Mack-Birmingham Tandum Lowboy Trailer
2 Mack-Gindy 25 Ton Tandum Semi Trailer
8 Heil- P3S 303 cy Dump Trailer
I 7 Fruehauf-TEO-F3-R 10000 Gal Tanker
5 Fruehauf-TEO-F2-R 6500 Gal Tanker
5 Fruehauf-Tandum Axle Dolly
2 Barko 14000 Telescopic Crane
6 Cobey 1062 Wagon Trailer
1 Cedarapids 443 Commander Crusher
1 Peerless Portable Base Stabilisation Plant
2 Atlantic International Water Treatment Plant
6 Caterpillar 631-B TractorS631-B Scraper
7 Caterpillar D8-H Dozer
2 4
Caterpillar D9- Dozer Caterpillar D6-C Dozer
2 Caterpillar 12-F Grader
5 Caterpillar 14-E Grader
U A-i
1
I
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (Cont)
Quantity
4
1
4
11Raygo
1
S1 2
ICaterpillar-200KW 3
1
1
1
1
1
3
2 2
2
I
1
2
2
I
1 2
8
1
j 8
1 4
9
1
Description
Caterpillar 966 Loader
Trojan 4000 Loader
Raygo 400A Compactor Vibrator
410A Compactor Vibrator
Vibro Plus Vibrating Sheepsfoot Roller
Bros 10000 Compactor
Bros 6000 Compactor
Generator Caterpillar - 125KW Generator
Little Reddevil Generator
Kholer 3KW Generator
Kholer 2KW Generator
Detroit Diesel Generator (2D-32)
Kholer Generator (5CKM61)
Hobart GR-3 03 Welders w trolley
Worthington 365 Compressor Worthington 160 Compressor
Kellypower Tamper
John Deere 2700 Disc Harrow10 Cut
ohn Deere 1630 Disc Harrow 7 Cut
Worthington WS-55 Rock Drill
Alemite Portable Service Station
Graco Lube Ranger
Worthington Wagon Drill
Layne Bowler Deep Well Pump
Layne Bowler Pump only
4 Centrifugal Pump
2 Centrifugal Pump
Columbian Steel Water Tanks 20000 US Gal
A-2
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (contd)
Quanti
1I Description
Caterpillar Parallel Shank Ripper
2 Fleco Blade Rake
4 Chainsaw
3 Gardner-Denver Compressor
5 Aerotron Radio Transmitters $1203
7 Aerotron Radio Receivers $2 10
16 SSB Radio Transceivers $1340
8 Auxilliary Radio Transceivers $1340
2 Cevy 4 x 4 Pickup Truck 8 Chevy 2 x 4 Pickup Truck
1 L B Smith Cone Crusher
2 Ford 4 x 4 (1164-14C Tractor)
2 Bros Sheepsfoot Roller
1 Hyster Towed Vibratory Compactor
During 1975 and 1976 the Contractor added the following listed equipment
1 Caterpillar No 14 Motor Grader
1 Caterpillar No 966 Loader
1 Trojan No 4000 Loader
1 Cone Crushing Plant 3 ft Standard Fine Bowl with 4 Deck Screens
4 Conveyor Units
A-3
I 1 I I I U I I
APPENDIX B
I I SOILS AND MATERIALS
I I 1 I I I I I 1
APPENDIX B
SOILS AND MATERIALS
(a) General
The road pavement is composed basically of two layers the surface
course and base course overlaying a compacted subgrade or embankment
The sources and volumes of the surface course and base course materials
are indicated in the Materials Utilization Diagrams included as Figures B-i
through B-4
(b) Subgrade
The subgrade soil consists primarily of aeolian fine sand except
for approximately 36 kilometers of the road for which the subgrade is a pan material consisting of clay In the pan areas special 1 Om thick
embankments were constructed with plasticity and fineness control of material
The subgrade and embankment soils were compacted to a minimum of 90
of modified AASHTO compaction The measured mean relative compaction
obtained immediately after compaction of the subgrade was 935 of the modified AASHTO maximum density
(c) Base Course
The majority of the base course materials are derived from aeolian deposits ie fine sand with a trace to some silty clay The
remaining base bourse approximately 15 of the total was obtained from pits having a large component of gravel The 15cm thick base
course is bank run or blended material for which the amounts of fines
and plasticity were controlled The base course materials were obtained from 123 base borrow pits and compacted to a minimum 95 of modified AASHTO density The measured mean relative compaction
directly after construction was 96 of the modified AASHTO maximum
density
(d) Surface Course
The 15cm thick surface course is well graded sandy gravel with
some silty clay fraction The materials for the road segment from
Kilometer 0+000 to Kilometer 173+000 are derived from calcrete deposits
while the materials for the remaining portion are derived from weathered
3-1
bedrock The surface course has controlled gradation plasticity and
durability to obtain sufficient strength to reduce ravelling to a minimum
particularly during the dry season and to resist the wear of traffic
Surface course materials have been obtained by screening crushing
and blending materials from 9 borrow areas and were compacted to a
minimum of 98 of modified AASUTO maximum dry density The comshy
posite properties for each borrow pit are indicated in the Average
Gradation Ourvesincluded as Figures B-5 through B-13 Directly
after construction of the surface course the measured mean relative
compaction was 100 of the modified AASHTO maximum density
B-2
N A TA K A ZUN GU LA RO0A D 70 033 90 CC
00 00 0 0 0+I 03- 30L K
0 I I
M 3 100 0002L [2
_
MATERIALS UTILIZATION DIAGRAM Fiure -I
NATA - KAZUNGULA ROAD
+--- 121
y T
MATERIALS UTILIZATION DIAGRAM Fgure R-Z
NAT A - KAZ UN GULA ROAD
07 2 230K300 220 220 232 252
I 3 3 2
MATERIALS UTILIZATION DIAGRAM Figure 2-3
itLT-m
CHOBE RIVER BY-PASS ROAD 02__ Q___ 0 60 40 - 0 50 0 i
-F-CEL
-Tl J-II II
MATERIALS UTILIZATION DIAGRAM Figure B-4
3 SIEVE ANALYSIS SMI~ia VIII
IY UN In~ VI STAISRS SIEVE NUMBfh SUE9 - usuLguNuus O-- aoIiUl- I1
11I a to to 0 i oIIIa lf I
II
SN Cu ye B
II N
o
i B _ ___~ N II 1 l s - Curi e At-
I 2 I a 6 4 2 i5 4 3 2 a -
GRAIN I IZE MILTERS
SILT AND CLAY SOILS GRAVEL SAND
I NUMBE1RSAMPLE DEPTH LL KIE IPTIONIELEV P1 ECIT
A Composit 38 19 CrusherAverage Runof 192 samples
B Composit 33 17 Surface Course Blend asAverage of 236 samples placed
MDD 1960 kgm Los Angeles Abrasion = 42 Average Blend Added 15=
REPUBLIC OF BOTSWANA TI PPETTS-ASSETT-NcCAIThY-STRATTOU MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY BOTSWANA-ZAMBIA GRAIN SIZE DISTRIBUTION BY DmArTE Q76HIGHWAY j PIT 2A DOi FIGURE B-5
E ANLYSISSIEVE NALYSIS NI
OPEING - In jS PhIMS-SEVE iNRh3EN son - MILLIMETER
V11 6plusmn SSIEVE
6 i S 0-4 0 10 miUS) 3055 3 001mesa a
9 I I I - -
Crye B
S bull
1TCrii INN20 1 e A- NI deg I FIK 46591 2 a045 4 2 1115 5 2 6
GRIISZ IN MILLIMETERS
COACE iE NtIUM FI SILT AD CLAY SOILSGRAVEL SAND
5r IBSAMPLE DEPTH ELEV LLP1
A Composite 28 10 Crusher Run Average of 229 samples
B Composite 28 11 Surface Course Blend as Placed Average of 58 samples
2050 kgm3 Averaoe Blend Added shy
TIPPETTS-ASETT-NCCARTIY-STATTONREPUBLIC OF BOTSWANA NEW YORK NY
MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS
BRAIN SIZE DISTRIBUTION BY NCZ jAATE9 876BOTSWANA-ZAMBIA
HIGHWAY PIT 14 amp 14A OWN FIGURE B-6
i
S ANALYSIS 01 ANALYSIS
SIEVE - n -IIII- SIZ-MII- - IN i
It a s 1
Ue a -- e B
- 1 -I-[_I - I I I
6l51 10 8 $514 1 O is 05I I 21 8GANSZNILMTR OA RE Filo 9OA-1i 1DI UM F log S ILT AND CLAY SO ILS
GRAVEL nSAND
E--l I UNEASMPLEDEPlTH ELEV LL P1 KWKIPTION
A Composite 36 19 Crusher Run
Average of 116 Samples
B Composite 36 15 Surface Course Blend Average of 138 samples
H GHWA E SA 18 SILT ANDURCLA-SIL
3kgm Los Angeles Abrasion 28
Av agau Pnd AAd = 907 ITI UETT$-ABBTT-NcentcentARTNY-STRATTON
NEW YORK NY
REPUBLIC OF BOTSWANA
MINISTRY OF WORKS amp COM24UNICATIONSIT NINEERS1
I I MGIELI7 I 1 8AIIGIWAE
I
4
SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU
V 1 Oe 001l
- -r--I-I -- I
S E- -IN S
KI zz7llfl$zIIIti z I
low560
20
2
IGRAIN SIZE IN MILLIMETERS
COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS
GRAVEL SAND
SAMP DEPTH ELEV L P1 0NBERIIPTI
A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples
B Composit( 28 13 Surface Course Blend as Placed
Average of 85 samples
Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA
REPUBLIC OF BOTSWANA TI EfTTS-AIETT-NCARTY-STRATTOi ITTqTPI yen O WOVQ A n rn WTraTTn~lz ENGINEERS NEW YOlK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8
-D IUR IB
II SIEVE ANALYIIS 1411 I LYIlMll
[urn $11min - I I ITUSE IVV I - mampINimums1 -l0 n 001
a1 i 4 is s 0 aL w I 2 0665S a a 4 i 0i
-7sl
96---
I RI IE IN M IEER
CfliEI FIN g o au SIT SILFIN M40 5C o432 14593 ry B6
ver 7 samples
NUMBE NERPI
Ay I GRAIN SIZE IN MILLIMETR
5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND
A Q A- Aii dd d~A
IMUBEIRIIIIPIi
3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables
B Composit 26 13 Surface Course BlendU as Placed
Average of 79 samples
AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =
REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9
SIEVE ANALYSIS IMmv na awLYoia
SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I
I- 01 001
e---__
Ir1 -NIP_]
20
OA
$05 9 2
E
I
86543
I
7tN
2 1 65
_OAlEED t
5 2
FN
I
GRAIN SIZE IN MILLIMETERS
1 111I
NU BE GRAVEL
COARSE
I
MEDIUM
I SAND
FSILT AND CLAY SOILS
SAMPLE4 DEP EEY 1 SCBI1PTIORI
A
B
Composite
Composite
38
26
17
13
Crusher Run Basaltic Aggregate
Average of 176 samples
Surface Course Blend -s Placed Average of 58 samples
Average MDD = 2135 kgm Los Angeles Abrasion = 38
Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY
WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971
3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10
SIEVE ANIALYSIS lNVINI1111 ANALYSIS
I EV OPE IN - INI8 TOSIIEENN1-MLII
I
I - - i ii 0
I GRI SIZEto N OILS 1
I ANDLI IS
G VELIZE I
IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL
-APL ESN
DEPTH ELEY LL PI DESCRIPTIONNUSMBE
3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples
B Composite 26 13 Surface Course Blend as Placed Average of 58 samples
Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34
Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY
BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11
___ I
SIEVE ANALYSIS W11 ANKEm SIS
SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS
01 001
sodego
i i
U Ae
6 559 2 a65 3 2 1 6532 S
II GRAIN SIZE INMILLIMETERS
=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL
GRAVEL SN
I SAMPE DEPTH ELEV LL P)S DESCRIPTION
A omposite 28 10 Crusher Run
SAverage of 72 samples
B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples
Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20
REPUBLICUINISTRY 0OF OF
BOTSWANA WORKS amp COMMUNIGTIONS
TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12
I
SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM
-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U
I _
I1li
Ia _ Cu ve
N IC A11
IQI II
1 IG S IIIMETE
I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND
SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION
A Composite 34 15 Crusher Run Average of 74 samples
B Composite 29 12 Surface Course Blend as Placed
Average of 42 samples
MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15
REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA
ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N
NEW sy cKA
YORK NYT E-2 5 1 7 7
HIGHWAY PIT 32A Mwe FIGURE B-13
I I I I I I I I
APPENDIX C
I WATER WELL LOCATIONS
I I I I I I I I I
APPENDIX C WATER WELL LOCATIONS
WELL NO 3
Location Km 171 Lt of centerline 200 meters
Drill - 6 x 392
Ream - 8 x 92
Case - 6 x 84
Test - 24 Hours - 276
Pump 6000 G P H
Total depth - 392
Pumped at 150
24 Hr Drawdown - 3
Water Good
WELL NO 4
Location Km 175 - Lt of centerline 100 meters
Drill - 6 x 380
Ream - 8 x 82
Case - 7 x 82
Test - 276
Pump 1800 G P H
Total depth - 380
Pumped at 200
Drawdown 24 Hr - 100
Water Good
WELL NO 5 (Govt No 2436
Location Km 178 - Lt of centerline 115 meters
Test -276
Pump - 1400 G P H
Total depth - 160
Pumped at 140
24 Hr Drawdown - 60
Water Good C-1
WELL NO 6
Location Km 183 - Lt of centerline 60 meters
Drill - 6 x 436
Ream - 8 x 86
Case - 7 x 86
Test - 276
Pump - 500 G P H
Total depth - 436
Pumped at 250
24 Hr Drawdown - 150
Water Good
WELL NO 7 - (Govt No 2435)
Location Km 189 - Rt of centerline 100 meters
Clean amp Test
Pump - 6000 G P H
Pumped at 140
24 Hr Drawdown - 10
Water Good
WELL NO 14
Location Km 252 - Lt of centerline 100 meters
Drill - 6 x 250
Ream - 8 x 53
Case - 6 x 53
Test - 276
Pump - 6000 G P H
Total depth - 250
Pumped at 150
24 Hr Drawdown - 6
Water Good
C-2
WELL AT KM 256 MAINTENANCE FACILITY NO 3
Location Km 256 - Lt of centerline 200 meters
Depth - 100 feet
Water Rest Level - 42 feet
Depth Pump Set - 70 feet
24 Hr Test - 1800 G P H
WELL NO 15
Location Km 245 - Rt of centerline 40 meters
Drill - 6 x 260
Ream - 8 x 54
Case - 54
Test -276
Pump - 1500 G P H
Total depth - 260
Pumped at 200
24 Hr Drawdown - 140
Water Good
WELL NO 16 Location Km 236 -Rt of centerline 30 meters
Drill - 6 x 250
Ream - 8 x 22
Case - 6 x 22
Test - 276
Pump -6000 G P H
Total depth - 288
Pumped at 150
24 Hr Drawdown - 10
Water Good
C-3
WELL NO 17
Location Km 224 - Rt of centerline 30 meters
Drill - 10 x 89
Case - 8 x 85
Drill- 8x 43
Drill - 6 x 38
Case -6 x 132
Test - 276
Pump -2000 G P H
Total Depth - 170
Pumped at 100
24 Hr Drawdown - 11
Water Good
WELL NO 18
Location Km 217 - Lt of centerline 200 meters
Drill -i0 x 70
Case - 7 x 70
Drill - 7 x 52
Drill - 6 x 88
Case - 6 x 122
Test - 276
Pump 2400 G P H
Total depth - 210
Pumped at 200
24 Hr Drawdown - 140
Water Good
C-4
WELL NO 19
Location Km 213 - Lt of centerline 100 meters
Drill - 10 x 44
Case - 8 x 40
Drill - 8 x 76
Drill 6 x 130
Case - 6 x 120
Test - 276
Pump - 6000 G P H
Total depth - 210
Pumped at 60
24 Hr Drawdown - 10
Water Good
WELL NO 20
Location Km 143 - Rt of centerline 100 meters
Drill - 10 x 240
Case - 7 x 220
Drill -6 x 378
Case - 6 x 240
Case - 5 x 240
Test - 276
Pump -1500 G P H
Total depth - 618
Pumped at 460
24 Hr Drawdown - 105
Water slightly salty to taste but drinkable
C-5
WELL NO 23
Location Km 139 - Lt of centerline 100 meters
Drill - 12 x 290
Place amp Extract Case - 10 x 290
Drill - 8 x 30
Drill - 6 x 40
Case - 8 x 290
Case - 6 x 320
Test - 276
Pump - 1200 G P H
Total depth - 360
Pumped at 330
24 Hr Drawdown - 120
Water salty
WELL NO 24
Location Km 135 - Lt of centerline 500 meters
Drill - 12 x 270
Drill - 10 x 10
Case - 10 x 270
Drill -8 x 30
Case - 8 x 290
Case -6 x 310
Case - 5 x 320
Test -276
Pump -4000 +G P H
Total depth - 320
Pumped at 270
24 Hr Drawdown - 2
Water Salty
C-6
I
5
WELL KM 205 MAINTENANCE FACILITY NO 2
Location Km 105 - Lt of centerline 40 meters
Depth - 302 feet
~ Water Rest Level - 82 feet
Depth Pump Set - 150 feet
48 Hr Test - 3000 + G P H
WELL NO 26
Location Km 82 - Lt of centerline 100 meters
Drill - 12 x 145
5 -8 x145
Drill - 8 x 23
-Case
I Drill - 7 x 10
Case - 7 x 168
I Case - 6 x178
Test - 276
Pump - 1200 G P H
Total depth - 306
I Pumped at 140
24 Hr Drawdown - 35
I Water Good
C
I 0-7
WELL NO 27
Location Km 77 - Lt of centerline 100 meters
Drill - 12 x 174
Install amp Extract Case - 10 x 174
Case - 8 x 174
Drill - 9 x 68
Drill - 8 x 64
Case - 7 x 242
Case - 6 x 306
Test - 276
Pump - 4000 + G P H
Total Depth - 306
Pumpe at 240
24 Hr Drawdown - 0
Water Good
WELL NO 28- (Govt No 2465)
Location Km 63 - Rt of centerline 100 meters
Clean amp Extract Case - 300
Ream - 10 x 98
Ream - 8x 27
Ream - 6 x 12
Case - 8 x 98
Case - 6 x 125
Test - 276
Pump - 1000 + G P H
Total depth - 137
Pumped at 130
24 Hr Drawdown - 33
Water Good
C-8
WELL NO 30
Location Km 47 - Rt of centerline 400 meters
Drill - 12 x 132
Case - 10 x 89
Install amp Extract Case - 12 x 43
Drill - 10 x 117
Case - 7 x 242
Drill - 6 x 183
Install amp Extract Case - 6 x 408
Test - 276
Pump - 1000 G P H
Total depth - 408
Pumped at 160
24 Hr Drawdown - 77
Water Salty
WELL NO 31
- Lt of centerline 200 metersLocation Km 44
Drill - 12 x 110
Case - 10 x 100
Drill - 10 x 142
Case 8 x 142
Drill - 8 x 250
Case 7 x 392
Drill - 6 x 78
Test - 276
Pump - 3000 G P H
Total depth - 502
Pumped at 160
24 Hr Drawdown - 44
Water Salty
C-9
WELL NO 32
Location Km 42 - Lt of centerline 100 meters
Drill - 12 x 108
Case - 10 x 108
Drill - 10 x 212
Drill - 8 x 120
Case - 6 x 340
Case - 8 x 182
Test - 276
Pump - 3000 + G P H
Total depth - 448
Pumped at 160
24 Hr Drawdown - 20
Water Salty
WELL NO 34
Location Km 35 - Lt of centerline 200 meters
Drill - 12 x 230
Install amp Extract Case - 10 x 230
Drill - 8 x 30
Case -6 x 260
Drill - 6 x 160
Case -5 x 324
Case - 8 x 20
Test - 276
Pump -1000 + G P H
Total depth - 420
Pumped at 150
24 Hr Drawdown - 100
Water Salty
C-10
WELL NO 36
Location Km 7 N E along old track from Km 63
Drill - 12 x 180
Case - 10 x 180
Drill - 10 x 231
Case - 8 x 211
Drill- 8x 254
Case - 6 x 245
Test -276
Pump -4000 + G P H
Total depth - 265
Pumped at 180
24 Hr Drawdown - 0
Water Good
C-11
I 3 I 1 I I I I B j APPENDDC D
SYNOPSIS 0 KEY CORRESPONDENCE
3 DURING CONSTRUCTION
I pound I I I 1 I I
On September 1 1973 the Contractor confirmed the
estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts
On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project
On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be
obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated
On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine
On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation
On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension
On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension
On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval
On October 15 1973 the Engineer returned the construction progress schedule for correction
On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim
D-I
On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor
On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project
On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25
On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter
On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents
On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract
On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised
On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading
On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule
On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request
On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period
D-2
On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report
On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material
On August 19 1974 the Contractor submitted an updated construction progress schedule for approval
On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases
On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor
On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor
On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project
On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course
On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country
On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course
On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions
On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule
On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress
D-3
On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract
On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana
On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor
On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion
On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations
On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases
On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season
On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees
On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections
On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project
On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course
On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project
On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract
D-4
October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request
On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor
On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620
On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project
On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y
completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense
On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted
On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project
On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim
On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic
On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor
On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976
D-5
On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time
On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares
On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material
On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500
On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor
On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula
On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana
OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected
On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road
On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road
Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10
On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued
On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced
On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091
On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091
Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued
D-6
I I IUUU U U UU I U
E PROJECT PHOTOGRAPHS
I IIIU U I
I Crushing Plants Surface Course
Pit 2A
Pug Mill Blending Surface Course
Pit 25A
II Surface Course
Pit 25A
UURYPTOERTOSE Pug Mil Blending
Road Reserve Bush Clearing
Km 242
U
Embankment Construction Km 287
IN
Road Construction Water Supply
Km 189
ROADWAY UNDER CONSTRUTION
II
E-2
Stockpiling Material Base Course
Special Embankment Construction Km 232
Watering of Embankment Km 257
ROADWAY UNDER CONSTRUCTION E-3
Culvert Assembly
Twin Culvert with Sand-Cement Pitching
Multiple Culverts with Sand-Cement Pitching
CULVERT INSTALLATIONS E- 4
AT Km 25
AT Km 194
Emergency Landing Strip Kra 2605
FINISHED ROADWAY E- 5
AT Km 286
AT Chobe By-Pass Junction Km 297
I Chobe By-Pass Road Near Ngoma Bridge
E-6FINISHED ROADWAY
UNITED STATES GOVERNMENT INSTRUCTIONS
Subject
2- a emo Final Report Botswana -Zambia Road Project
use routing symbols whenever possible
SENDER Use brief informal language Conserve space Forward original and one copy
RECEIVER Reply below the message keep one
copy return one copy
DATE OF MESSAGE Routing Symbol
TO
4 fiSENGR CampRSC No 8 Rm -507 SA-11I AID Washington DC 20523a
kl7
= dTUei
TITLE OF-ORIGINATO~R-D0
-FOLD-INITIAL MESSAGE
Chief Engineer Hl)S0 -FOLD--
Enclosed please Road Project
find 8 copies of the Final Report on Botswana - Zambia
REPLY MESSAGE
DATE OF REPLY Routing Symbol
From fDanald W Reilly USA=h to Kenya
PO Box 30261 Nairobi Kenya
101878 SIGNATURE OF REPLIER
Palmer Stearns
TITLE OF REPLIER
DSENGR
5027-104 1 TO BE RETAINED BY ADDRESSEE
Civil Engineer OPTIONAL FORM 27
JULY 1973 GSA FPMR (41 CFR) 101-116
3m ZAMBIA
I ANGOLA GULN - KASANEI
IGOI THE PROJECT
APANIDAMATENGA
R ES8A
BOSA AZAMIATR
B 0 T S A N APO
SERULI SELIBI
LEPXEPE AIG R 1ATINS DRIFT
TSHANER EP 0O F
MOLEPOLOLE
W bull PLOBATSE
l--
TSMABON
AMATuLASA LEGEND
PROJECT ROAD
bull MAIN ROADS -MAIN FEEDER ROADS
SECONDARY ROADS
-= --
BOTSWANA -ZAMBIA LOCATION MAP
FIGURE 1
ROAD
I INTRODUCTION
This is the final report on the construction of the Botswana-Zambia
Highway Project accomplished between April 25 1976 and January 19 1977
The report has been prepared in accordance with Guidelines for Preparing
Final Report dated September 30 1963 as issued by United States Agency for
International Development
A DESCRIPTION OF PROJECT
The Project consists of three sections of all-weather two-lane highshy
way with a total length of 370 kilometers including
1) The Nata-Kazungula section approximately 300 kilometers
in length beginning at Nata (See Figure 1) on the Francistown
Nata road and extending north west to the existing ferry cross shy
ing to Zambia on the Zambezi River at Kazungula
2) The Chobe River By-Pass section approximately 65 kilometers
in length beginning near Kazungula at Kilometer 2973 on the
Nata-Kazungula highway and extending south west skirting
the town of Kasane through the Chobe National Park to the
bridge across the Chobe River at Ngoma
3) The Pandamatena Access Road 5 kilometers in length
beginning at approximately Kilometer 198 on the Nata-Kazungula
highway and extending east to the village of Pandamatenga
on the Botswana-Rhodesia border
Construction work included clearing and grubbing of 1392 hectares
earthwork of approximately 1120000 cubic meters 3400 meters of culvert
1538800 cubic meters of base course and 457200 cubic meters of surface
course
The project design was performed under an agreement dated June 15
1971 for professional services between the Government of the Republic of
Botswana and Tippetts-Abbett-McCarthy-Stratton of New York U S A
-1shy
B FUNDING
Funds for construction and construction supervision of the Project
were provided by loan agreements between the Government of the Republic of
Botswana and the United States of America acting through the Agency for
International Development (AID) The funds allocated were in the amount
of US $16600000 and were derived from the following sources
-U S $12600000 AID Loan No 690-H-001
-U S $ 4000000 First Amendment No 690-H-001A
C CONTRACTUAL ARRANGEMENTS
A contract for construction of the Botswana-Zambia Highway Project
was signed on Tune 26 1973 between the Government of the Republic of Botswana
and Grove International Corporation and Grove Shepherd Wilson and Kruge Inc
a joint venture for an estimated total cost of construction of US $897784200
and Rand 316082500 The contract provided for completion of the project
by April 25 1976 a 975 day period from Notice to Proceed given on August 22
1973
There were two amendments to the contract both dealing with the condishy
tions and limits for Off-Shelf purchases
A contract for supervision of construction was entered into by the Government
of the Republic of Botswana and Tippetts -Abbett-McCarthy-Stratton (TAMS) in
the form of a supplement to the basic agreement for design of the project The
supplemental agreement was dated July 2 1973 Two amendments the first
dated September 29 1976 and the second dated July 26 1977 extended the
the time for completion and modified the original estimate for cost of inspection
services
D MODIFICATIONS OF CONTR4tCT
During the course of construction twelve Change Orders approved
and signed by the Government were issued These orders are briefly described
in Table 1
-2shy
5307
TABLE 1 CHANGE ORDERS
Change Order Cost No Purpose US$ RandPula
1 Hotel rentals for Engineers staff while awaiting completion of housing units 842138
2 Additional air-conditioning units for staff housing 376898
3 Arrangements for monthly advance progress payments for permanent materials on site shy
4 Addition to the number of TAMS staff housing units 3900000 780600
5 For escalation of POL costs between 11 November 1973 and 11 February 1974 575601
6 For additional escalation of POL costs between 11 February 1974 and 14 May 1974 1815344
7 For additional escalation of POL costs between 14 May 1974 and 19 July 1974 77277517
LESS OVERPAYMENT (-)1661539
8 Interim allowance by GOB authorization to all employees to maximum rate of R500 per month between April 1973 and March 1974 297802
9 Escalation of minimum wage rates for field personnel 16022556
LESS OVERPAYMENT (-)125720
10 Reduction InRoad Reserve clearing on Costs included in Chobe By-Pass Road amounts in pay
items 302 303 and 304
11 For increase in mobilization costs to Costs included in cover importation of additional compaction amounts in equipment pay item 101
12 For minor realignment of roadway at Costs included in Nata contract pay items
TOTALS 4276898 95829606
-3shy
II STAFFING Excluding the mobilization and demobilization periods the major conshy
struction efforts took place during the calendar years 1974 1975 and 1976
A summary of the project staffing is presented in Table 2
TABLE 2
AverageMaximum Staffing Levels
Contractors Staff Engineers Staff
YearSource US Botswana TCN Code 941 US Botswana TCN
1974 17 232 2 22 4 11 9 1975 18 302 3 43 4 12 9
1976 15 290 3 40 4 13 7
Maximum 20 359 5 49 4 14 9
A paving specialist visited the Project in December 1973 and une 1974
in connection with proposals for upgrading the Project and again in March 1975
in connection with selection of material for the surface course
A partner from the Consultants home office made periodic visits to the
Project sites
III TRAINING
The Contractor trained Botswana Staff as drivers equipment operators
and oilers surveyors soils technicians mechanics helpers stewards and
maintenance workers
The Engineer trained Botswana Staff as soils technicians surveyors
drivers draftsmen and office clerical workers
IV CONSTRUCTION EQUIPMENT
In compliance with a requirement of the Contract Documents the Conshy
tractor presented a schedule of major plant and equipment to be used on the
Project Some adjustments were made to the listing as the job progressed
-4shy
Advances for the purchase of new items (materials construction plant
equipment tools spare parts maintenance supplies and buildings furniture
and equipment for the Contractors and Engineers camps) totaling U S
$124443700 and local currency Rand 225000 were made available to the
Contractor as provided for by the Contract Documents Reimbursement of
these advances were made in January1974 in accordance with the Contract
requirements
The major items of construction and shop equipment imported by the
Contractor for use on the project are listed in Appendix A
V MATERIALS UTILIZED
A SOILS
The formation consists of two layers the surface and base courses
placed on a compacted subgrade or embankment Base course materials were
obtained from 123 borrow pits along the roadway Surface course materials
which required processing were obtained from 9 borrow areas Appendix B
contains the Material Utilization Diagrams which show the sources of these
borrow materials and their utilization along the road Also included in Appendix
B are the Average Gradation Curves of the processed surface course materials
B WATER
Water for construction was obtained from 24 water wells drilled by the
Contractor Appendix C contains information on locations depth and yields
of the wells
VI PROTECT HISTORY
A GENERAL The engineers inspectors and materials technicians employed by TAMS
systematically inspected construction operations and sampled and tested mashy
terials being incorporated in the work to ensure compliance with contract reshy
quirements Each month a determination was made of the work accomplished
-5shy
and eligible for payments and pay quantities for the Contractors monthly
progress estimates were certified
The Engineers survey parties verified reference points established
by the Contractors personnel for vertical and horizontal control points estabshy
lished along the preliminary base line and verified limits of bush clearing
flagged by the Contractor After the final line was staked detailed cross shy
sections were taken for computation of pay quantities Check measurements
were made periodically to verify the construction performed by the Contractor
As sections of the Project were completed final measurements were taken and
as-built plans prepared
Periodic progress reports and charts were prepared for the Government
and AID throughout the construction phase
After substantial completion of the works in January1977 a final inshy
spection of the project was made On January 19 1977 a Certificate of
Completion was issued by the Engineer As required by the Contract the
six-month maintenance period commenced
A synopsis of the more important correspondence initiated or received
by the Consultant in connection with administration of the Contract is included
in Appendix D
B SEQUENCE OF EVENTS
During late July and early August1973 the Contractor began to mobilize
personnel at Pandamatenga preparatory to commencing construction of the main
camp facilities
A sub-contract for construction of the engineers facilities atd some
items of the Contractors camp was negotiated between Grove International
and Botzam Services of Livingstone Zambia During September 1973 the subshy
contractor mobilized men equipment and material at Pandamatenga and comshy
menced construction on main camp housing units
On September 20 1973 the Contractor having been denied access
through the Botswana-Rhodesia Border at Pandamatenga for mobilizing equipment
material and supplies decided to shift the main camp site to the vicinity of
Kazungula The camp site was established at Kilometer 3+400 on the Chobe
River By-Pass road approximately 8 Kilometers east of the village of Kasane
3 -6shy
During late October construction of housing shops offices wareshy
houses and ancillary facilities commenced at the relocated main camp site
The camp facilities were substantially completed by the end of March 1974
Temporary satellite camps were later established at Pandamatenga at Kilometer
105 and at Kilometer 63 on the Nata-Kazungula segment of the project
Mobilization of construction equipment personnel material and supplies
began in early October 1973 and continued through April 1974
During the remainder of 1973 the construction efforts were concentrated
on construction of the main camp site A small amount of clearing grubbing
and earthwork was accomplished on the Chobe River By-Pass Road and on the
northern end of the Nata-Kazungula road
1 Principal Construction Accomplishments During 1974
Clearing and Grubbing - 5366 hectares completed between
Kilometer 297 and Kilometer 169 on the Nata-Kazungula segment
of the project
- Earthworks - excavation and borrow quantities came to a total
of approximately 506500m with the major portion of this work
performed between Kilometer 297 and Kilometer 196 on the Nata-
Kazungula segment of the project
- Pipe culverts - installed 59 pipes ranging in size from 18 to 60
diameter for a total of 1129 linealmeters between Kilometer 297
and Kilometer 196 on the Nata-Kazungula segment and from
Kilometer 0+000 to Kilometer 3+500 on the Pandamatenga Access
Road
Base Course - approximately 113600m placed between Kilometer
297 and Kilometer 197 on the Nata-Kazungula segment and from
Kilometer 0+000 to Kilometer 2+350 on the Pandamatenga Access
Road
Surface Course - approximately 19000m was placed between
Kilometer 292 and Kilometer 273+500 on the Nata-Kazungula segment
5-7shyI
2 Principal Construction Accomplishments During 1975
- Clearing and Grubbing - 634 hectares completed between
Kilometer 169 and Kilometer 2+000 on the Nata-Kazungula
segment between Kilometer 0+000 and Kilometer 14+000
on the Chobe River By-Pass segment and from Kilometer 2+350
to Kilometer 5+275 on the Pandamatenga Access Road
- Earthworks - excavation and borrow quantities came to a total
of 379145m3 with the major share of this work performed
between Kilometer 196 and Kilometer 49+000 on the Nata-
Kazungula segment and on the Pandamatenga Access Road
- Pipe Culverts - 69 pipes were installed ranging in size from
18 to 60 in diameter for a total of 1308 lineal meters
between Kilometer 200 and Kilometer 65 on the Nata-Kazungula
segment and from Kilometer 0+000 to Kilometer 5+200 on the
Pandamatenga Access Road
Base Course - approximately 219000m was placed between
Kilometer 197 and Kilometer 57 on the Nata-Kazungula segment
and on the entire 52 kilometers of the Pandamatenga Access
Road
Surface Course - approximately 177 000m of surface material
placed between Kilometer 273 and Kilometer 130 on the Nata-
Kazungula segment
3 Principal Construction Accomplishments During 1976
- Clearing and Grubbing - completed 2188 hectares between
Kilometer 2+000 and Kildmeter 0+000 and between Kilometer
297+300 and Kilometer299+600 on the Nata-Kazungula segment
and between Kilometer 14+000 and Kilometer 65+000 on the
Chobe River By-Pass segment which completed this item of
work
- Earthworks - excavation and borrow quantities came to a total
of 235092m which completed this item of work
-8shy
Pipe Culverts - 36 pipes were installed ranging in size from
18 to 48 diameter for a total of 973 lineal meters The
major share of this work was performed on the Chobe River
By-Pass segment
Base Course- 206120m3 was placed on the Nata-Kazungula
road between Kilometer 57+600 and Kilometer 0+000 and between
Kilometer 297+300 and Kilometer 299+588 and on the Chobe River
By-Pass road between Kilometer 0+000 and Kilometer 65+048
Surface Course - 260878m placed between Kilometer 130+000
and Kilometer 0+000 on the Nata-Kazungula road and between
Kilometer 0+000 and Kilometer 65+048 on the Chobe River By-Pass
Road
4 Principal Construction Accomplishments During 1977
The Contractor continued to work on final clean-up and corrective
work in accordance with the punch list provided by the Engineer On January
19 1977 the Completion Certificate was issued with a list of outstanding
deficiencies attached These were rectified by the Contractor during the
early part of the six-rnnth maintenance period The Contractor in compliance
with the Engineers instructions installed 10 additional 18 diameter CMP
culverts on the Nata-Kazungula road between Kilometer 236 and Kilometer 238
Two additional pipes were installed at Kilometer 6+540 on the Chobe River
By-Pass Road Rock was placed on sand fill slopes and at culvert inlets and
outlets to guard against erosion on numerous sections of the Nata-Kazungula
Road and Chobe River By-Pass Road The Contractor maintained the project
until July 19 1977 when a Certificate of Maintenance was issued
C PROTECT SCHDULING AND DELAYS
On October 5 1973 as required by Clause 12 Part II-Conditions of
Particular Application of the Conditions of Contract - the Contractor submitted
his proposed construction schedule for the project The schedule was returned
to the Contractor on October 16 1973 for modifications It was resubmitted
and finally approved on March 19 1974
-9shy
In October 1974 the Contractor presented a revised construction schedule
It was not approved by the Engineer who informed the Contractor that the
actual rate of progress was far below that projected by the schedule and reshy
quested an explanation as to what steps were contemplated to bring progress
on the project up to schedule
On November 6 1974 the Contractor again presented a revised conshy
struction schedule reflecting a completion date beyond the contract period for
completing the Project The Contractor made reference to conditions which
had allegedly caused delays to progress on the Project and stated that claims
would be presented requesting time extension for completion of the Project
The revised schedule was not approved pending presentation by the Contractor
of all supporting details
By the end of December 1974 the Contractor had completed 29 percent
of the work then specified in the Contract as modified by ten change orders
This compared with 55 percent scheduled to be completed according to the
approved progress schedule
On February 27 1975 the Engineer notified the Contractor that progress
was continuing to fall further behind the approved construction schedule and
requested the Contractor to submit in writing his plans for bringing progress
up to schedule in compliance with pertinent provisions of the Contract On Tuly
24 1975 the Contractor again presented a revised construction schedule reflectshy
ing a completion date of August 31 1976 This schedule was accepted by
the Engineer in September 1975 with the provision that acceptance of the
schedule should in no way be construed as an approval for extension of time
for completion of the project
By the end of 1975 the Contractor had completed 63 percent of the work specified in the contract as compared with 73 percent projected in the revised
construction schedule
On March 11 1976 the Contractor presented the 6th revision of the
construction schedule reflecting a completion date of December 31 1976
This schedule is included herein as Figure 2 The schedule was accepted by
the Engineer on March 24 1976 with the provision that acceptance of this
schedule should in no manner be construed as an approval of extension of time
for completing the project
-0shy
LEGEND CONSTRUCTION PROGRESS CHART BOTSWANA-ZAMBIA HIGHWAY
WORK ELEMENT lt I
MOBILIZATION 7 T z ltgt 7gtlt74gtlaquo 7
GENERAL gt gt lt lt+ $ lt2740gt77
SURVEYS
AND SITE CLEARING
PREPARESUGRADE lt gt
7+47
I EARTHWORKS ~kgt1 E ~gt07 gt0gt0 ~laquolt gtgt~lt7laquogt 77gt
BASE COURSE
SURFACE COURSE ~lt 7ltgtlaquoD4
+4 7iA
gt
ltgt7 77 gtlt4lt
P
DRAINAGE I-shy___MAINTENANCEI I _ _ _ _
FACILITIES - -gt 7 7 7 7lt7 ltgttVViV77W7vV~7~
HIGHWAY HARDWARE lt
CHANGE ORDERS AND I
DAY WORKS lt
TOTAL
VII FINANCIAL SUMMARY
As indicated in Section I-B of this report the funds available (from
AID) for the construction of this project were in the amount of U S $16600000
The disbursements of monies for the construction and construction supervision
through May 31 1978 are summarized in Table 3 along with the original esshy
timated amounts for comparison
TABLE 3
Disbursements Through Original Estimated
May 31 1978 Amounts
US $ RandPula US $ RandPula
Construction Costs (Grove International See Table 5) 882317486 310970881 897784200 316082500
Change Orders (From Table 1) 4276898 - 95829606
Supervision of Construction (TAMS) 129796299 - 135468100 -
TOTALS 1016390683 406800487 1033252300 316082500
From original contracts and supplements through May 31 1978
Table 4 presents a summary of final construction costs including
those by Contract Pay Items disbursed to the Contractor (Grove International)
The above listed costs do not include back charges on the loan which
charges are not available to the Engineer
The Contractor has submitted a series of claims requesting extensions
of time and reimbursement for claimed additional costs These claims are
currently under review by the Engineer A supplemental report will be issued
by the Engineer after the Contractors claims have been resolved and will
include any additional costs and time extensions awarded to the Contractor
Assuming an average rate of exchange of 1000 Pula or 1000 Rand
equal to 1350 U S Dollars and neglecting bank charges the approximate
loan balance as of May 31 1978 was U S $940000
-12shy
An average conversion rate of exchange has been used to estimate
the loan balance since the actual rate varied and actual draw-down figures
are not available to the Engineer
At the time of Project commencement the currency of Botswana was
the Rand In August 1976 the Botswana Government changed over from the
Rand to the Pula as the official currency During the course of construction
local currency disbursements have been made to the Contractor in both Rand
and Pula
-13shy
--- =1m =- M Il-- M=M m -
Sheet 1 of 4TABLE 4 - SCHEDULE OF FINAL CONTRACT QUANTITIES
Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount RandPula
No Description Measure Final Quantities US $ RandPula US $
101 Mobilization Lump Sum 10000 57077200 58360600 -0shy
201 Engineers Staff Housing 2-Bedroom House Each 1 3333 1300000 272100 1300000 272100
202 Engineers Staff Housing 3-Bedroom House Each 3 10000 1400000 339300 4200000 1017900
203 Engineers Staff Housing Technicians House Each 4 10000 650000 130100 2600000 520400
204 Engineers Staff Housing Jr Staff Housing Each 16 10000 112500 19600 1800000 313600
205 Moving amp Re-erection of Engineers Staff Housing Each move NOT APPLICABLE
206 Engineers Main Office Lump Sum 10000 1800000 306300
207 Engineers Main Laboratory Lump Sum 10000 2600000 407700
208 Moving amp Re-erection of Engineers Main Office Each Move NOT A P L I CA B L E and Main Laboratory
209 Engineers Forward OfficeLaboratory Each 2 10000 766300 1532600 -0shy
210 Additional Surveying Office Laboratory and Prime Cost 69809 1500000 1047146 -0-Communication Equipment
211 Contractors Expenses and Profit on Percent 69809 25 261787 -0-Prime Cost Item 210
212 Provide and Maintain Vehicles for ihe Engineers Staff Vmonth 304 Vmonth 24000 17100 7296000 5198400
301 Basic Survey and Setting Out km 370590 km 48500 13400 17973600 4965905
302 Clear Heavy Bush Hectare 514075 ha 23200 7500 11926540 3855563
303 Cleat Light Bush Hectare 70053 ha 15500 5000 10858215 3502650
304 Clear Grassy Hectare 1775 ha 12400 4000 2201000 710000
401 Prepare Sand Subgrade for Embankment m2 3335443 m 2 011 006 36689873 20012658
402 Prepare Clay Subgrade for Embankment m2 408450 m 2 023 011 9394350 4492950
501 Construct Standard Embankment i3 865895 m3 117 047 101309715 40697065
3502 Construct Special Embankment m3 254779 m 196 074 49936684 18853646
030 384035 129450503 Excavate Unsuitable Material m3 4315 m3 089
601 Base Course m3 538854 m3 310 120 167044740 64662480
602 Overhaul of Base Course Material m3km 46462 m3kr 028 010 1300936 464620
701 Remove Overburden from Surface Course Borrow Pits m3 260056 m3 060 016 15603360 4160896
702 Surface Course m3 457260 m3 545 210 249206700 96024600
703 Haul of Surface Course Material m3kmn 6572330 m3kr 0102 0034 67037766 22345922
TABLE 4 (Continued) Sheet 2 of 4
Item No Description
Unit of Measure
Total Revised Final Quantities
Contract Unit Price US $ RandPula
Final Revised Contract Amount US $ RandPula
801
802
803
Excavation and Backfill for Cuiverts up to 48 inches in diameter
Excavations for foundations of Culverts 48 inches and over
Backfilling culverts 48 inches and over
m3
m3
m3
558512 m3
94946 m3
322010 m3
480
270
490
330
140
360
2680858
256352
1577849
1843090
132923
1159236
804 Nestable Galvanized Corrugated Metal Pipe 18 inches in diameter 14 USSG
PIPE LM 249963 LM 4380 820 10948379 2049697
END SECTIONS Each 388 each 6660 225 2584080 87300
805 Nestable Galvanized Corrugated Metal Pipe 24 inches in diameter 14 USSG
PIPE LM 28104 LM 5560 1100 1562582 309144
Supply additional 24 inch diam Pipe 114035
END SECTIONS Each 34 each 10200 800 345800 27200
Supply additional End Sections 30600
806 Nestable Galvanized Corrugated Metal Pipe 36 inches in diameter 12 USSG
PIPE LM 19506 LM 10500 1600 2048130 312096
END SECTIONS Each 28 each 27600 2100 772800 58800
807 Nestable Galvanized Corrugated Metal Pipe 48 inches in diameter 12 USSG
PIPE LM 11522 each 13500 2200 1555470 253484
Supply additional 48 inch diam Pipe 10480
END SECTIONS Each 10 each 76200 4300 762000 43000
808 Nestable Galvanized Corrugated Metal Pipe 60 inches in diameter 10 USSG
PIPE LM 48768 LM 20400 2700 9948672 1316736
Supply additional 60 inch diam Pipe 47510
809
810
811
Excavate inlet and outlet drains mitre ditches and roadway ditches
Sand-cement Pitching
Clay slope Protection
m3
m3
m2
477781 m3
276769 m3
NA
110
2300
030
3000
100
525559
636569
-0-
143334
830307
-0shy
Supplied but not installed
mi -blN mN -m~ m ml m min nmlW arm~ nn- a a a a1 al a
TABLE 4 (Continued) Sheet 3 of 4
Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount No Description
812 Supply Nestable Galvanized Corrugated
Metal Pipe 18 inches in diameter 14 USSG
PIPE
END SECTIONS
901 Construct Maintenance Facility Complex
902 Water Pump
903 Contractors Expenses and Profit on Prime Cost Item 902
1001 Road Signs
1002 Guide Posts
1003 Kilometre Posts
Dayworks
TOTAL-SCHEDULE OF QUANTITIES
a
0) CO I CO 2
TAMS Staff Hotel Accommodation
Air Conditioners TCN Houses
CO 3
CO 4
NA (Progress Payment Permanent Material)
Additional TCN Housing
SUB-TOTAL
CO 5 POL Escalation Cost
CO 6 POL Escalation Cost
CO 7 POL Escalation Cost
SUB-TOTAL
LESS OVERPAYMENT
TOTAL POL ESCALATION COST
CO 8 Interim Allowance (Wage)
CO 9 Wage Escalation Cost
SUB-TOTAL
LESS OVERPAYMENT
TOTAL WAGE ESCALATION COST
Measure
LM
Each
Lump Sum
PC Sum
25
Each
Each
Each
As directed
Each
Final Quantities
238 LM
0 each
98
284 each
900 each
182 each
100
100
100
NA
6
100
100
100
100
100
US $
3400
6700
8520
As Billed
650000
As Shown
As Shown
As Shown
As Shown
As Shown
RandPula
900000
1000
1450
1500
130100
US $
809200
-0-
13014800
-0-
-0-
2419680
-0-
-0-
5999421
882317486
376898
3900000
4276898
RandPula
-0shy
-0shy
7308700
255223
63806
284000
1305000
273000
-0shy
310970881
842138
5307
780600
1628045
575601
1815344
77277517
79668462
1661539
78006923
297802
16022556
16320358
125720
16194638
TABLE 4 (Continued)
Item No Description
Unit of Measure
Total Revised Final Quantities
Contract Unit Price US $ RandPula
Sheet 4 of 4
Final Revised Contract Amount US $ RandPula
CO 10
CO 11
CO 12
Road Reserve cleared way Chobe River By-pass (included under items 302 303 and 304)
Importation Additional Sheeps foot roller (included under item 101)
Minor realignment of roadway at Nata
TOTAL CONSTRUCTION COST
100
100
100
886594384 406800487
ishy
I I I I I I I I
APPENDIX A
I CONSTRUCTION EQUIPMENT
I I I I U I I I I I
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT
I Descqription
2 Chevrolet Impala Sedan
5 jeep-Wagoner
7 jeep-Wagoner
1 Chevrolet Vega
23 Chevrolet Pickup
19 Mack Tractor (T675-8W)
2 Chevrolet Flat Bed
5 Mack-Platform Stake (T426-3500)
1 Mack-2000 Gal Fuel (T426-3500)
4 Mack Dump Truck 10 cy
2 Chevrolet Dump Truck 5 cy
1 Mack-Birmingham Tandum Lowboy Trailer
2 Mack-Gindy 25 Ton Tandum Semi Trailer
8 Heil- P3S 303 cy Dump Trailer
I 7 Fruehauf-TEO-F3-R 10000 Gal Tanker
5 Fruehauf-TEO-F2-R 6500 Gal Tanker
5 Fruehauf-Tandum Axle Dolly
2 Barko 14000 Telescopic Crane
6 Cobey 1062 Wagon Trailer
1 Cedarapids 443 Commander Crusher
1 Peerless Portable Base Stabilisation Plant
2 Atlantic International Water Treatment Plant
6 Caterpillar 631-B TractorS631-B Scraper
7 Caterpillar D8-H Dozer
2 4
Caterpillar D9- Dozer Caterpillar D6-C Dozer
2 Caterpillar 12-F Grader
5 Caterpillar 14-E Grader
U A-i
1
I
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (Cont)
Quantity
4
1
4
11Raygo
1
S1 2
ICaterpillar-200KW 3
1
1
1
1
1
3
2 2
2
I
1
2
2
I
1 2
8
1
j 8
1 4
9
1
Description
Caterpillar 966 Loader
Trojan 4000 Loader
Raygo 400A Compactor Vibrator
410A Compactor Vibrator
Vibro Plus Vibrating Sheepsfoot Roller
Bros 10000 Compactor
Bros 6000 Compactor
Generator Caterpillar - 125KW Generator
Little Reddevil Generator
Kholer 3KW Generator
Kholer 2KW Generator
Detroit Diesel Generator (2D-32)
Kholer Generator (5CKM61)
Hobart GR-3 03 Welders w trolley
Worthington 365 Compressor Worthington 160 Compressor
Kellypower Tamper
John Deere 2700 Disc Harrow10 Cut
ohn Deere 1630 Disc Harrow 7 Cut
Worthington WS-55 Rock Drill
Alemite Portable Service Station
Graco Lube Ranger
Worthington Wagon Drill
Layne Bowler Deep Well Pump
Layne Bowler Pump only
4 Centrifugal Pump
2 Centrifugal Pump
Columbian Steel Water Tanks 20000 US Gal
A-2
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (contd)
Quanti
1I Description
Caterpillar Parallel Shank Ripper
2 Fleco Blade Rake
4 Chainsaw
3 Gardner-Denver Compressor
5 Aerotron Radio Transmitters $1203
7 Aerotron Radio Receivers $2 10
16 SSB Radio Transceivers $1340
8 Auxilliary Radio Transceivers $1340
2 Cevy 4 x 4 Pickup Truck 8 Chevy 2 x 4 Pickup Truck
1 L B Smith Cone Crusher
2 Ford 4 x 4 (1164-14C Tractor)
2 Bros Sheepsfoot Roller
1 Hyster Towed Vibratory Compactor
During 1975 and 1976 the Contractor added the following listed equipment
1 Caterpillar No 14 Motor Grader
1 Caterpillar No 966 Loader
1 Trojan No 4000 Loader
1 Cone Crushing Plant 3 ft Standard Fine Bowl with 4 Deck Screens
4 Conveyor Units
A-3
I 1 I I I U I I
APPENDIX B
I I SOILS AND MATERIALS
I I 1 I I I I I 1
APPENDIX B
SOILS AND MATERIALS
(a) General
The road pavement is composed basically of two layers the surface
course and base course overlaying a compacted subgrade or embankment
The sources and volumes of the surface course and base course materials
are indicated in the Materials Utilization Diagrams included as Figures B-i
through B-4
(b) Subgrade
The subgrade soil consists primarily of aeolian fine sand except
for approximately 36 kilometers of the road for which the subgrade is a pan material consisting of clay In the pan areas special 1 Om thick
embankments were constructed with plasticity and fineness control of material
The subgrade and embankment soils were compacted to a minimum of 90
of modified AASHTO compaction The measured mean relative compaction
obtained immediately after compaction of the subgrade was 935 of the modified AASHTO maximum density
(c) Base Course
The majority of the base course materials are derived from aeolian deposits ie fine sand with a trace to some silty clay The
remaining base bourse approximately 15 of the total was obtained from pits having a large component of gravel The 15cm thick base
course is bank run or blended material for which the amounts of fines
and plasticity were controlled The base course materials were obtained from 123 base borrow pits and compacted to a minimum 95 of modified AASHTO density The measured mean relative compaction
directly after construction was 96 of the modified AASHTO maximum
density
(d) Surface Course
The 15cm thick surface course is well graded sandy gravel with
some silty clay fraction The materials for the road segment from
Kilometer 0+000 to Kilometer 173+000 are derived from calcrete deposits
while the materials for the remaining portion are derived from weathered
3-1
bedrock The surface course has controlled gradation plasticity and
durability to obtain sufficient strength to reduce ravelling to a minimum
particularly during the dry season and to resist the wear of traffic
Surface course materials have been obtained by screening crushing
and blending materials from 9 borrow areas and were compacted to a
minimum of 98 of modified AASUTO maximum dry density The comshy
posite properties for each borrow pit are indicated in the Average
Gradation Ourvesincluded as Figures B-5 through B-13 Directly
after construction of the surface course the measured mean relative
compaction was 100 of the modified AASHTO maximum density
B-2
N A TA K A ZUN GU LA RO0A D 70 033 90 CC
00 00 0 0 0+I 03- 30L K
0 I I
M 3 100 0002L [2
_
MATERIALS UTILIZATION DIAGRAM Fiure -I
NATA - KAZUNGULA ROAD
+--- 121
y T
MATERIALS UTILIZATION DIAGRAM Fgure R-Z
NAT A - KAZ UN GULA ROAD
07 2 230K300 220 220 232 252
I 3 3 2
MATERIALS UTILIZATION DIAGRAM Figure 2-3
itLT-m
CHOBE RIVER BY-PASS ROAD 02__ Q___ 0 60 40 - 0 50 0 i
-F-CEL
-Tl J-II II
MATERIALS UTILIZATION DIAGRAM Figure B-4
3 SIEVE ANALYSIS SMI~ia VIII
IY UN In~ VI STAISRS SIEVE NUMBfh SUE9 - usuLguNuus O-- aoIiUl- I1
11I a to to 0 i oIIIa lf I
II
SN Cu ye B
II N
o
i B _ ___~ N II 1 l s - Curi e At-
I 2 I a 6 4 2 i5 4 3 2 a -
GRAIN I IZE MILTERS
SILT AND CLAY SOILS GRAVEL SAND
I NUMBE1RSAMPLE DEPTH LL KIE IPTIONIELEV P1 ECIT
A Composit 38 19 CrusherAverage Runof 192 samples
B Composit 33 17 Surface Course Blend asAverage of 236 samples placed
MDD 1960 kgm Los Angeles Abrasion = 42 Average Blend Added 15=
REPUBLIC OF BOTSWANA TI PPETTS-ASSETT-NcCAIThY-STRATTOU MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY BOTSWANA-ZAMBIA GRAIN SIZE DISTRIBUTION BY DmArTE Q76HIGHWAY j PIT 2A DOi FIGURE B-5
E ANLYSISSIEVE NALYSIS NI
OPEING - In jS PhIMS-SEVE iNRh3EN son - MILLIMETER
V11 6plusmn SSIEVE
6 i S 0-4 0 10 miUS) 3055 3 001mesa a
9 I I I - -
Crye B
S bull
1TCrii INN20 1 e A- NI deg I FIK 46591 2 a045 4 2 1115 5 2 6
GRIISZ IN MILLIMETERS
COACE iE NtIUM FI SILT AD CLAY SOILSGRAVEL SAND
5r IBSAMPLE DEPTH ELEV LLP1
A Composite 28 10 Crusher Run Average of 229 samples
B Composite 28 11 Surface Course Blend as Placed Average of 58 samples
2050 kgm3 Averaoe Blend Added shy
TIPPETTS-ASETT-NCCARTIY-STATTONREPUBLIC OF BOTSWANA NEW YORK NY
MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS
BRAIN SIZE DISTRIBUTION BY NCZ jAATE9 876BOTSWANA-ZAMBIA
HIGHWAY PIT 14 amp 14A OWN FIGURE B-6
i
S ANALYSIS 01 ANALYSIS
SIEVE - n -IIII- SIZ-MII- - IN i
It a s 1
Ue a -- e B
- 1 -I-[_I - I I I
6l51 10 8 $514 1 O is 05I I 21 8GANSZNILMTR OA RE Filo 9OA-1i 1DI UM F log S ILT AND CLAY SO ILS
GRAVEL nSAND
E--l I UNEASMPLEDEPlTH ELEV LL P1 KWKIPTION
A Composite 36 19 Crusher Run
Average of 116 Samples
B Composite 36 15 Surface Course Blend Average of 138 samples
H GHWA E SA 18 SILT ANDURCLA-SIL
3kgm Los Angeles Abrasion 28
Av agau Pnd AAd = 907 ITI UETT$-ABBTT-NcentcentARTNY-STRATTON
NEW YORK NY
REPUBLIC OF BOTSWANA
MINISTRY OF WORKS amp COM24UNICATIONSIT NINEERS1
I I MGIELI7 I 1 8AIIGIWAE
I
4
SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU
V 1 Oe 001l
- -r--I-I -- I
S E- -IN S
KI zz7llfl$zIIIti z I
low560
20
2
IGRAIN SIZE IN MILLIMETERS
COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS
GRAVEL SAND
SAMP DEPTH ELEV L P1 0NBERIIPTI
A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples
B Composit( 28 13 Surface Course Blend as Placed
Average of 85 samples
Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA
REPUBLIC OF BOTSWANA TI EfTTS-AIETT-NCARTY-STRATTOi ITTqTPI yen O WOVQ A n rn WTraTTn~lz ENGINEERS NEW YOlK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8
-D IUR IB
II SIEVE ANALYIIS 1411 I LYIlMll
[urn $11min - I I ITUSE IVV I - mampINimums1 -l0 n 001
a1 i 4 is s 0 aL w I 2 0665S a a 4 i 0i
-7sl
96---
I RI IE IN M IEER
CfliEI FIN g o au SIT SILFIN M40 5C o432 14593 ry B6
ver 7 samples
NUMBE NERPI
Ay I GRAIN SIZE IN MILLIMETR
5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND
A Q A- Aii dd d~A
IMUBEIRIIIIPIi
3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables
B Composit 26 13 Surface Course BlendU as Placed
Average of 79 samples
AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =
REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9
SIEVE ANALYSIS IMmv na awLYoia
SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I
I- 01 001
e---__
Ir1 -NIP_]
20
OA
$05 9 2
E
I
86543
I
7tN
2 1 65
_OAlEED t
5 2
FN
I
GRAIN SIZE IN MILLIMETERS
1 111I
NU BE GRAVEL
COARSE
I
MEDIUM
I SAND
FSILT AND CLAY SOILS
SAMPLE4 DEP EEY 1 SCBI1PTIORI
A
B
Composite
Composite
38
26
17
13
Crusher Run Basaltic Aggregate
Average of 176 samples
Surface Course Blend -s Placed Average of 58 samples
Average MDD = 2135 kgm Los Angeles Abrasion = 38
Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY
WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971
3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10
SIEVE ANIALYSIS lNVINI1111 ANALYSIS
I EV OPE IN - INI8 TOSIIEENN1-MLII
I
I - - i ii 0
I GRI SIZEto N OILS 1
I ANDLI IS
G VELIZE I
IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL
-APL ESN
DEPTH ELEY LL PI DESCRIPTIONNUSMBE
3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples
B Composite 26 13 Surface Course Blend as Placed Average of 58 samples
Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34
Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY
BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11
___ I
SIEVE ANALYSIS W11 ANKEm SIS
SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS
01 001
sodego
i i
U Ae
6 559 2 a65 3 2 1 6532 S
II GRAIN SIZE INMILLIMETERS
=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL
GRAVEL SN
I SAMPE DEPTH ELEV LL P)S DESCRIPTION
A omposite 28 10 Crusher Run
SAverage of 72 samples
B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples
Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20
REPUBLICUINISTRY 0OF OF
BOTSWANA WORKS amp COMMUNIGTIONS
TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12
I
SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM
-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U
I _
I1li
Ia _ Cu ve
N IC A11
IQI II
1 IG S IIIMETE
I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND
SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION
A Composite 34 15 Crusher Run Average of 74 samples
B Composite 29 12 Surface Course Blend as Placed
Average of 42 samples
MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15
REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA
ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N
NEW sy cKA
YORK NYT E-2 5 1 7 7
HIGHWAY PIT 32A Mwe FIGURE B-13
I I I I I I I I
APPENDIX C
I WATER WELL LOCATIONS
I I I I I I I I I
APPENDIX C WATER WELL LOCATIONS
WELL NO 3
Location Km 171 Lt of centerline 200 meters
Drill - 6 x 392
Ream - 8 x 92
Case - 6 x 84
Test - 24 Hours - 276
Pump 6000 G P H
Total depth - 392
Pumped at 150
24 Hr Drawdown - 3
Water Good
WELL NO 4
Location Km 175 - Lt of centerline 100 meters
Drill - 6 x 380
Ream - 8 x 82
Case - 7 x 82
Test - 276
Pump 1800 G P H
Total depth - 380
Pumped at 200
Drawdown 24 Hr - 100
Water Good
WELL NO 5 (Govt No 2436
Location Km 178 - Lt of centerline 115 meters
Test -276
Pump - 1400 G P H
Total depth - 160
Pumped at 140
24 Hr Drawdown - 60
Water Good C-1
WELL NO 6
Location Km 183 - Lt of centerline 60 meters
Drill - 6 x 436
Ream - 8 x 86
Case - 7 x 86
Test - 276
Pump - 500 G P H
Total depth - 436
Pumped at 250
24 Hr Drawdown - 150
Water Good
WELL NO 7 - (Govt No 2435)
Location Km 189 - Rt of centerline 100 meters
Clean amp Test
Pump - 6000 G P H
Pumped at 140
24 Hr Drawdown - 10
Water Good
WELL NO 14
Location Km 252 - Lt of centerline 100 meters
Drill - 6 x 250
Ream - 8 x 53
Case - 6 x 53
Test - 276
Pump - 6000 G P H
Total depth - 250
Pumped at 150
24 Hr Drawdown - 6
Water Good
C-2
WELL AT KM 256 MAINTENANCE FACILITY NO 3
Location Km 256 - Lt of centerline 200 meters
Depth - 100 feet
Water Rest Level - 42 feet
Depth Pump Set - 70 feet
24 Hr Test - 1800 G P H
WELL NO 15
Location Km 245 - Rt of centerline 40 meters
Drill - 6 x 260
Ream - 8 x 54
Case - 54
Test -276
Pump - 1500 G P H
Total depth - 260
Pumped at 200
24 Hr Drawdown - 140
Water Good
WELL NO 16 Location Km 236 -Rt of centerline 30 meters
Drill - 6 x 250
Ream - 8 x 22
Case - 6 x 22
Test - 276
Pump -6000 G P H
Total depth - 288
Pumped at 150
24 Hr Drawdown - 10
Water Good
C-3
WELL NO 17
Location Km 224 - Rt of centerline 30 meters
Drill - 10 x 89
Case - 8 x 85
Drill- 8x 43
Drill - 6 x 38
Case -6 x 132
Test - 276
Pump -2000 G P H
Total Depth - 170
Pumped at 100
24 Hr Drawdown - 11
Water Good
WELL NO 18
Location Km 217 - Lt of centerline 200 meters
Drill -i0 x 70
Case - 7 x 70
Drill - 7 x 52
Drill - 6 x 88
Case - 6 x 122
Test - 276
Pump 2400 G P H
Total depth - 210
Pumped at 200
24 Hr Drawdown - 140
Water Good
C-4
WELL NO 19
Location Km 213 - Lt of centerline 100 meters
Drill - 10 x 44
Case - 8 x 40
Drill - 8 x 76
Drill 6 x 130
Case - 6 x 120
Test - 276
Pump - 6000 G P H
Total depth - 210
Pumped at 60
24 Hr Drawdown - 10
Water Good
WELL NO 20
Location Km 143 - Rt of centerline 100 meters
Drill - 10 x 240
Case - 7 x 220
Drill -6 x 378
Case - 6 x 240
Case - 5 x 240
Test - 276
Pump -1500 G P H
Total depth - 618
Pumped at 460
24 Hr Drawdown - 105
Water slightly salty to taste but drinkable
C-5
WELL NO 23
Location Km 139 - Lt of centerline 100 meters
Drill - 12 x 290
Place amp Extract Case - 10 x 290
Drill - 8 x 30
Drill - 6 x 40
Case - 8 x 290
Case - 6 x 320
Test - 276
Pump - 1200 G P H
Total depth - 360
Pumped at 330
24 Hr Drawdown - 120
Water salty
WELL NO 24
Location Km 135 - Lt of centerline 500 meters
Drill - 12 x 270
Drill - 10 x 10
Case - 10 x 270
Drill -8 x 30
Case - 8 x 290
Case -6 x 310
Case - 5 x 320
Test -276
Pump -4000 +G P H
Total depth - 320
Pumped at 270
24 Hr Drawdown - 2
Water Salty
C-6
I
5
WELL KM 205 MAINTENANCE FACILITY NO 2
Location Km 105 - Lt of centerline 40 meters
Depth - 302 feet
~ Water Rest Level - 82 feet
Depth Pump Set - 150 feet
48 Hr Test - 3000 + G P H
WELL NO 26
Location Km 82 - Lt of centerline 100 meters
Drill - 12 x 145
5 -8 x145
Drill - 8 x 23
-Case
I Drill - 7 x 10
Case - 7 x 168
I Case - 6 x178
Test - 276
Pump - 1200 G P H
Total depth - 306
I Pumped at 140
24 Hr Drawdown - 35
I Water Good
C
I 0-7
WELL NO 27
Location Km 77 - Lt of centerline 100 meters
Drill - 12 x 174
Install amp Extract Case - 10 x 174
Case - 8 x 174
Drill - 9 x 68
Drill - 8 x 64
Case - 7 x 242
Case - 6 x 306
Test - 276
Pump - 4000 + G P H
Total Depth - 306
Pumpe at 240
24 Hr Drawdown - 0
Water Good
WELL NO 28- (Govt No 2465)
Location Km 63 - Rt of centerline 100 meters
Clean amp Extract Case - 300
Ream - 10 x 98
Ream - 8x 27
Ream - 6 x 12
Case - 8 x 98
Case - 6 x 125
Test - 276
Pump - 1000 + G P H
Total depth - 137
Pumped at 130
24 Hr Drawdown - 33
Water Good
C-8
WELL NO 30
Location Km 47 - Rt of centerline 400 meters
Drill - 12 x 132
Case - 10 x 89
Install amp Extract Case - 12 x 43
Drill - 10 x 117
Case - 7 x 242
Drill - 6 x 183
Install amp Extract Case - 6 x 408
Test - 276
Pump - 1000 G P H
Total depth - 408
Pumped at 160
24 Hr Drawdown - 77
Water Salty
WELL NO 31
- Lt of centerline 200 metersLocation Km 44
Drill - 12 x 110
Case - 10 x 100
Drill - 10 x 142
Case 8 x 142
Drill - 8 x 250
Case 7 x 392
Drill - 6 x 78
Test - 276
Pump - 3000 G P H
Total depth - 502
Pumped at 160
24 Hr Drawdown - 44
Water Salty
C-9
WELL NO 32
Location Km 42 - Lt of centerline 100 meters
Drill - 12 x 108
Case - 10 x 108
Drill - 10 x 212
Drill - 8 x 120
Case - 6 x 340
Case - 8 x 182
Test - 276
Pump - 3000 + G P H
Total depth - 448
Pumped at 160
24 Hr Drawdown - 20
Water Salty
WELL NO 34
Location Km 35 - Lt of centerline 200 meters
Drill - 12 x 230
Install amp Extract Case - 10 x 230
Drill - 8 x 30
Case -6 x 260
Drill - 6 x 160
Case -5 x 324
Case - 8 x 20
Test - 276
Pump -1000 + G P H
Total depth - 420
Pumped at 150
24 Hr Drawdown - 100
Water Salty
C-10
WELL NO 36
Location Km 7 N E along old track from Km 63
Drill - 12 x 180
Case - 10 x 180
Drill - 10 x 231
Case - 8 x 211
Drill- 8x 254
Case - 6 x 245
Test -276
Pump -4000 + G P H
Total depth - 265
Pumped at 180
24 Hr Drawdown - 0
Water Good
C-11
I 3 I 1 I I I I B j APPENDDC D
SYNOPSIS 0 KEY CORRESPONDENCE
3 DURING CONSTRUCTION
I pound I I I 1 I I
On September 1 1973 the Contractor confirmed the
estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts
On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project
On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be
obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated
On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine
On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation
On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension
On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension
On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval
On October 15 1973 the Engineer returned the construction progress schedule for correction
On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim
D-I
On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor
On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project
On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25
On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter
On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents
On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract
On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised
On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading
On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule
On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request
On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period
D-2
On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report
On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material
On August 19 1974 the Contractor submitted an updated construction progress schedule for approval
On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases
On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor
On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor
On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project
On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course
On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country
On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course
On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions
On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule
On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress
D-3
On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract
On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana
On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor
On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion
On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations
On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases
On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season
On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees
On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections
On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project
On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course
On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project
On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract
D-4
October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request
On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor
On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620
On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project
On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y
completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense
On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted
On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project
On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim
On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic
On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor
On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976
D-5
On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time
On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares
On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material
On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500
On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor
On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula
On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana
OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected
On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road
On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road
Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10
On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued
On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced
On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091
On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091
Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued
D-6
I I IUUU U U UU I U
E PROJECT PHOTOGRAPHS
I IIIU U I
I Crushing Plants Surface Course
Pit 2A
Pug Mill Blending Surface Course
Pit 25A
II Surface Course
Pit 25A
UURYPTOERTOSE Pug Mil Blending
Road Reserve Bush Clearing
Km 242
U
Embankment Construction Km 287
IN
Road Construction Water Supply
Km 189
ROADWAY UNDER CONSTRUTION
II
E-2
Stockpiling Material Base Course
Special Embankment Construction Km 232
Watering of Embankment Km 257
ROADWAY UNDER CONSTRUCTION E-3
Culvert Assembly
Twin Culvert with Sand-Cement Pitching
Multiple Culverts with Sand-Cement Pitching
CULVERT INSTALLATIONS E- 4
AT Km 25
AT Km 194
Emergency Landing Strip Kra 2605
FINISHED ROADWAY E- 5
AT Km 286
AT Chobe By-Pass Junction Km 297
I Chobe By-Pass Road Near Ngoma Bridge
E-6FINISHED ROADWAY
3m ZAMBIA
I ANGOLA GULN - KASANEI
IGOI THE PROJECT
APANIDAMATENGA
R ES8A
BOSA AZAMIATR
B 0 T S A N APO
SERULI SELIBI
LEPXEPE AIG R 1ATINS DRIFT
TSHANER EP 0O F
MOLEPOLOLE
W bull PLOBATSE
l--
TSMABON
AMATuLASA LEGEND
PROJECT ROAD
bull MAIN ROADS -MAIN FEEDER ROADS
SECONDARY ROADS
-= --
BOTSWANA -ZAMBIA LOCATION MAP
FIGURE 1
ROAD
I INTRODUCTION
This is the final report on the construction of the Botswana-Zambia
Highway Project accomplished between April 25 1976 and January 19 1977
The report has been prepared in accordance with Guidelines for Preparing
Final Report dated September 30 1963 as issued by United States Agency for
International Development
A DESCRIPTION OF PROJECT
The Project consists of three sections of all-weather two-lane highshy
way with a total length of 370 kilometers including
1) The Nata-Kazungula section approximately 300 kilometers
in length beginning at Nata (See Figure 1) on the Francistown
Nata road and extending north west to the existing ferry cross shy
ing to Zambia on the Zambezi River at Kazungula
2) The Chobe River By-Pass section approximately 65 kilometers
in length beginning near Kazungula at Kilometer 2973 on the
Nata-Kazungula highway and extending south west skirting
the town of Kasane through the Chobe National Park to the
bridge across the Chobe River at Ngoma
3) The Pandamatena Access Road 5 kilometers in length
beginning at approximately Kilometer 198 on the Nata-Kazungula
highway and extending east to the village of Pandamatenga
on the Botswana-Rhodesia border
Construction work included clearing and grubbing of 1392 hectares
earthwork of approximately 1120000 cubic meters 3400 meters of culvert
1538800 cubic meters of base course and 457200 cubic meters of surface
course
The project design was performed under an agreement dated June 15
1971 for professional services between the Government of the Republic of
Botswana and Tippetts-Abbett-McCarthy-Stratton of New York U S A
-1shy
B FUNDING
Funds for construction and construction supervision of the Project
were provided by loan agreements between the Government of the Republic of
Botswana and the United States of America acting through the Agency for
International Development (AID) The funds allocated were in the amount
of US $16600000 and were derived from the following sources
-U S $12600000 AID Loan No 690-H-001
-U S $ 4000000 First Amendment No 690-H-001A
C CONTRACTUAL ARRANGEMENTS
A contract for construction of the Botswana-Zambia Highway Project
was signed on Tune 26 1973 between the Government of the Republic of Botswana
and Grove International Corporation and Grove Shepherd Wilson and Kruge Inc
a joint venture for an estimated total cost of construction of US $897784200
and Rand 316082500 The contract provided for completion of the project
by April 25 1976 a 975 day period from Notice to Proceed given on August 22
1973
There were two amendments to the contract both dealing with the condishy
tions and limits for Off-Shelf purchases
A contract for supervision of construction was entered into by the Government
of the Republic of Botswana and Tippetts -Abbett-McCarthy-Stratton (TAMS) in
the form of a supplement to the basic agreement for design of the project The
supplemental agreement was dated July 2 1973 Two amendments the first
dated September 29 1976 and the second dated July 26 1977 extended the
the time for completion and modified the original estimate for cost of inspection
services
D MODIFICATIONS OF CONTR4tCT
During the course of construction twelve Change Orders approved
and signed by the Government were issued These orders are briefly described
in Table 1
-2shy
5307
TABLE 1 CHANGE ORDERS
Change Order Cost No Purpose US$ RandPula
1 Hotel rentals for Engineers staff while awaiting completion of housing units 842138
2 Additional air-conditioning units for staff housing 376898
3 Arrangements for monthly advance progress payments for permanent materials on site shy
4 Addition to the number of TAMS staff housing units 3900000 780600
5 For escalation of POL costs between 11 November 1973 and 11 February 1974 575601
6 For additional escalation of POL costs between 11 February 1974 and 14 May 1974 1815344
7 For additional escalation of POL costs between 14 May 1974 and 19 July 1974 77277517
LESS OVERPAYMENT (-)1661539
8 Interim allowance by GOB authorization to all employees to maximum rate of R500 per month between April 1973 and March 1974 297802
9 Escalation of minimum wage rates for field personnel 16022556
LESS OVERPAYMENT (-)125720
10 Reduction InRoad Reserve clearing on Costs included in Chobe By-Pass Road amounts in pay
items 302 303 and 304
11 For increase in mobilization costs to Costs included in cover importation of additional compaction amounts in equipment pay item 101
12 For minor realignment of roadway at Costs included in Nata contract pay items
TOTALS 4276898 95829606
-3shy
II STAFFING Excluding the mobilization and demobilization periods the major conshy
struction efforts took place during the calendar years 1974 1975 and 1976
A summary of the project staffing is presented in Table 2
TABLE 2
AverageMaximum Staffing Levels
Contractors Staff Engineers Staff
YearSource US Botswana TCN Code 941 US Botswana TCN
1974 17 232 2 22 4 11 9 1975 18 302 3 43 4 12 9
1976 15 290 3 40 4 13 7
Maximum 20 359 5 49 4 14 9
A paving specialist visited the Project in December 1973 and une 1974
in connection with proposals for upgrading the Project and again in March 1975
in connection with selection of material for the surface course
A partner from the Consultants home office made periodic visits to the
Project sites
III TRAINING
The Contractor trained Botswana Staff as drivers equipment operators
and oilers surveyors soils technicians mechanics helpers stewards and
maintenance workers
The Engineer trained Botswana Staff as soils technicians surveyors
drivers draftsmen and office clerical workers
IV CONSTRUCTION EQUIPMENT
In compliance with a requirement of the Contract Documents the Conshy
tractor presented a schedule of major plant and equipment to be used on the
Project Some adjustments were made to the listing as the job progressed
-4shy
Advances for the purchase of new items (materials construction plant
equipment tools spare parts maintenance supplies and buildings furniture
and equipment for the Contractors and Engineers camps) totaling U S
$124443700 and local currency Rand 225000 were made available to the
Contractor as provided for by the Contract Documents Reimbursement of
these advances were made in January1974 in accordance with the Contract
requirements
The major items of construction and shop equipment imported by the
Contractor for use on the project are listed in Appendix A
V MATERIALS UTILIZED
A SOILS
The formation consists of two layers the surface and base courses
placed on a compacted subgrade or embankment Base course materials were
obtained from 123 borrow pits along the roadway Surface course materials
which required processing were obtained from 9 borrow areas Appendix B
contains the Material Utilization Diagrams which show the sources of these
borrow materials and their utilization along the road Also included in Appendix
B are the Average Gradation Curves of the processed surface course materials
B WATER
Water for construction was obtained from 24 water wells drilled by the
Contractor Appendix C contains information on locations depth and yields
of the wells
VI PROTECT HISTORY
A GENERAL The engineers inspectors and materials technicians employed by TAMS
systematically inspected construction operations and sampled and tested mashy
terials being incorporated in the work to ensure compliance with contract reshy
quirements Each month a determination was made of the work accomplished
-5shy
and eligible for payments and pay quantities for the Contractors monthly
progress estimates were certified
The Engineers survey parties verified reference points established
by the Contractors personnel for vertical and horizontal control points estabshy
lished along the preliminary base line and verified limits of bush clearing
flagged by the Contractor After the final line was staked detailed cross shy
sections were taken for computation of pay quantities Check measurements
were made periodically to verify the construction performed by the Contractor
As sections of the Project were completed final measurements were taken and
as-built plans prepared
Periodic progress reports and charts were prepared for the Government
and AID throughout the construction phase
After substantial completion of the works in January1977 a final inshy
spection of the project was made On January 19 1977 a Certificate of
Completion was issued by the Engineer As required by the Contract the
six-month maintenance period commenced
A synopsis of the more important correspondence initiated or received
by the Consultant in connection with administration of the Contract is included
in Appendix D
B SEQUENCE OF EVENTS
During late July and early August1973 the Contractor began to mobilize
personnel at Pandamatenga preparatory to commencing construction of the main
camp facilities
A sub-contract for construction of the engineers facilities atd some
items of the Contractors camp was negotiated between Grove International
and Botzam Services of Livingstone Zambia During September 1973 the subshy
contractor mobilized men equipment and material at Pandamatenga and comshy
menced construction on main camp housing units
On September 20 1973 the Contractor having been denied access
through the Botswana-Rhodesia Border at Pandamatenga for mobilizing equipment
material and supplies decided to shift the main camp site to the vicinity of
Kazungula The camp site was established at Kilometer 3+400 on the Chobe
River By-Pass road approximately 8 Kilometers east of the village of Kasane
3 -6shy
During late October construction of housing shops offices wareshy
houses and ancillary facilities commenced at the relocated main camp site
The camp facilities were substantially completed by the end of March 1974
Temporary satellite camps were later established at Pandamatenga at Kilometer
105 and at Kilometer 63 on the Nata-Kazungula segment of the project
Mobilization of construction equipment personnel material and supplies
began in early October 1973 and continued through April 1974
During the remainder of 1973 the construction efforts were concentrated
on construction of the main camp site A small amount of clearing grubbing
and earthwork was accomplished on the Chobe River By-Pass Road and on the
northern end of the Nata-Kazungula road
1 Principal Construction Accomplishments During 1974
Clearing and Grubbing - 5366 hectares completed between
Kilometer 297 and Kilometer 169 on the Nata-Kazungula segment
of the project
- Earthworks - excavation and borrow quantities came to a total
of approximately 506500m with the major portion of this work
performed between Kilometer 297 and Kilometer 196 on the Nata-
Kazungula segment of the project
- Pipe culverts - installed 59 pipes ranging in size from 18 to 60
diameter for a total of 1129 linealmeters between Kilometer 297
and Kilometer 196 on the Nata-Kazungula segment and from
Kilometer 0+000 to Kilometer 3+500 on the Pandamatenga Access
Road
Base Course - approximately 113600m placed between Kilometer
297 and Kilometer 197 on the Nata-Kazungula segment and from
Kilometer 0+000 to Kilometer 2+350 on the Pandamatenga Access
Road
Surface Course - approximately 19000m was placed between
Kilometer 292 and Kilometer 273+500 on the Nata-Kazungula segment
5-7shyI
2 Principal Construction Accomplishments During 1975
- Clearing and Grubbing - 634 hectares completed between
Kilometer 169 and Kilometer 2+000 on the Nata-Kazungula
segment between Kilometer 0+000 and Kilometer 14+000
on the Chobe River By-Pass segment and from Kilometer 2+350
to Kilometer 5+275 on the Pandamatenga Access Road
- Earthworks - excavation and borrow quantities came to a total
of 379145m3 with the major share of this work performed
between Kilometer 196 and Kilometer 49+000 on the Nata-
Kazungula segment and on the Pandamatenga Access Road
- Pipe Culverts - 69 pipes were installed ranging in size from
18 to 60 in diameter for a total of 1308 lineal meters
between Kilometer 200 and Kilometer 65 on the Nata-Kazungula
segment and from Kilometer 0+000 to Kilometer 5+200 on the
Pandamatenga Access Road
Base Course - approximately 219000m was placed between
Kilometer 197 and Kilometer 57 on the Nata-Kazungula segment
and on the entire 52 kilometers of the Pandamatenga Access
Road
Surface Course - approximately 177 000m of surface material
placed between Kilometer 273 and Kilometer 130 on the Nata-
Kazungula segment
3 Principal Construction Accomplishments During 1976
- Clearing and Grubbing - completed 2188 hectares between
Kilometer 2+000 and Kildmeter 0+000 and between Kilometer
297+300 and Kilometer299+600 on the Nata-Kazungula segment
and between Kilometer 14+000 and Kilometer 65+000 on the
Chobe River By-Pass segment which completed this item of
work
- Earthworks - excavation and borrow quantities came to a total
of 235092m which completed this item of work
-8shy
Pipe Culverts - 36 pipes were installed ranging in size from
18 to 48 diameter for a total of 973 lineal meters The
major share of this work was performed on the Chobe River
By-Pass segment
Base Course- 206120m3 was placed on the Nata-Kazungula
road between Kilometer 57+600 and Kilometer 0+000 and between
Kilometer 297+300 and Kilometer 299+588 and on the Chobe River
By-Pass road between Kilometer 0+000 and Kilometer 65+048
Surface Course - 260878m placed between Kilometer 130+000
and Kilometer 0+000 on the Nata-Kazungula road and between
Kilometer 0+000 and Kilometer 65+048 on the Chobe River By-Pass
Road
4 Principal Construction Accomplishments During 1977
The Contractor continued to work on final clean-up and corrective
work in accordance with the punch list provided by the Engineer On January
19 1977 the Completion Certificate was issued with a list of outstanding
deficiencies attached These were rectified by the Contractor during the
early part of the six-rnnth maintenance period The Contractor in compliance
with the Engineers instructions installed 10 additional 18 diameter CMP
culverts on the Nata-Kazungula road between Kilometer 236 and Kilometer 238
Two additional pipes were installed at Kilometer 6+540 on the Chobe River
By-Pass Road Rock was placed on sand fill slopes and at culvert inlets and
outlets to guard against erosion on numerous sections of the Nata-Kazungula
Road and Chobe River By-Pass Road The Contractor maintained the project
until July 19 1977 when a Certificate of Maintenance was issued
C PROTECT SCHDULING AND DELAYS
On October 5 1973 as required by Clause 12 Part II-Conditions of
Particular Application of the Conditions of Contract - the Contractor submitted
his proposed construction schedule for the project The schedule was returned
to the Contractor on October 16 1973 for modifications It was resubmitted
and finally approved on March 19 1974
-9shy
In October 1974 the Contractor presented a revised construction schedule
It was not approved by the Engineer who informed the Contractor that the
actual rate of progress was far below that projected by the schedule and reshy
quested an explanation as to what steps were contemplated to bring progress
on the project up to schedule
On November 6 1974 the Contractor again presented a revised conshy
struction schedule reflecting a completion date beyond the contract period for
completing the Project The Contractor made reference to conditions which
had allegedly caused delays to progress on the Project and stated that claims
would be presented requesting time extension for completion of the Project
The revised schedule was not approved pending presentation by the Contractor
of all supporting details
By the end of December 1974 the Contractor had completed 29 percent
of the work then specified in the Contract as modified by ten change orders
This compared with 55 percent scheduled to be completed according to the
approved progress schedule
On February 27 1975 the Engineer notified the Contractor that progress
was continuing to fall further behind the approved construction schedule and
requested the Contractor to submit in writing his plans for bringing progress
up to schedule in compliance with pertinent provisions of the Contract On Tuly
24 1975 the Contractor again presented a revised construction schedule reflectshy
ing a completion date of August 31 1976 This schedule was accepted by
the Engineer in September 1975 with the provision that acceptance of the
schedule should in no way be construed as an approval for extension of time
for completion of the project
By the end of 1975 the Contractor had completed 63 percent of the work specified in the contract as compared with 73 percent projected in the revised
construction schedule
On March 11 1976 the Contractor presented the 6th revision of the
construction schedule reflecting a completion date of December 31 1976
This schedule is included herein as Figure 2 The schedule was accepted by
the Engineer on March 24 1976 with the provision that acceptance of this
schedule should in no manner be construed as an approval of extension of time
for completing the project
-0shy
LEGEND CONSTRUCTION PROGRESS CHART BOTSWANA-ZAMBIA HIGHWAY
WORK ELEMENT lt I
MOBILIZATION 7 T z ltgt 7gtlt74gtlaquo 7
GENERAL gt gt lt lt+ $ lt2740gt77
SURVEYS
AND SITE CLEARING
PREPARESUGRADE lt gt
7+47
I EARTHWORKS ~kgt1 E ~gt07 gt0gt0 ~laquolt gtgt~lt7laquogt 77gt
BASE COURSE
SURFACE COURSE ~lt 7ltgtlaquoD4
+4 7iA
gt
ltgt7 77 gtlt4lt
P
DRAINAGE I-shy___MAINTENANCEI I _ _ _ _
FACILITIES - -gt 7 7 7 7lt7 ltgttVViV77W7vV~7~
HIGHWAY HARDWARE lt
CHANGE ORDERS AND I
DAY WORKS lt
TOTAL
VII FINANCIAL SUMMARY
As indicated in Section I-B of this report the funds available (from
AID) for the construction of this project were in the amount of U S $16600000
The disbursements of monies for the construction and construction supervision
through May 31 1978 are summarized in Table 3 along with the original esshy
timated amounts for comparison
TABLE 3
Disbursements Through Original Estimated
May 31 1978 Amounts
US $ RandPula US $ RandPula
Construction Costs (Grove International See Table 5) 882317486 310970881 897784200 316082500
Change Orders (From Table 1) 4276898 - 95829606
Supervision of Construction (TAMS) 129796299 - 135468100 -
TOTALS 1016390683 406800487 1033252300 316082500
From original contracts and supplements through May 31 1978
Table 4 presents a summary of final construction costs including
those by Contract Pay Items disbursed to the Contractor (Grove International)
The above listed costs do not include back charges on the loan which
charges are not available to the Engineer
The Contractor has submitted a series of claims requesting extensions
of time and reimbursement for claimed additional costs These claims are
currently under review by the Engineer A supplemental report will be issued
by the Engineer after the Contractors claims have been resolved and will
include any additional costs and time extensions awarded to the Contractor
Assuming an average rate of exchange of 1000 Pula or 1000 Rand
equal to 1350 U S Dollars and neglecting bank charges the approximate
loan balance as of May 31 1978 was U S $940000
-12shy
An average conversion rate of exchange has been used to estimate
the loan balance since the actual rate varied and actual draw-down figures
are not available to the Engineer
At the time of Project commencement the currency of Botswana was
the Rand In August 1976 the Botswana Government changed over from the
Rand to the Pula as the official currency During the course of construction
local currency disbursements have been made to the Contractor in both Rand
and Pula
-13shy
--- =1m =- M Il-- M=M m -
Sheet 1 of 4TABLE 4 - SCHEDULE OF FINAL CONTRACT QUANTITIES
Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount RandPula
No Description Measure Final Quantities US $ RandPula US $
101 Mobilization Lump Sum 10000 57077200 58360600 -0shy
201 Engineers Staff Housing 2-Bedroom House Each 1 3333 1300000 272100 1300000 272100
202 Engineers Staff Housing 3-Bedroom House Each 3 10000 1400000 339300 4200000 1017900
203 Engineers Staff Housing Technicians House Each 4 10000 650000 130100 2600000 520400
204 Engineers Staff Housing Jr Staff Housing Each 16 10000 112500 19600 1800000 313600
205 Moving amp Re-erection of Engineers Staff Housing Each move NOT APPLICABLE
206 Engineers Main Office Lump Sum 10000 1800000 306300
207 Engineers Main Laboratory Lump Sum 10000 2600000 407700
208 Moving amp Re-erection of Engineers Main Office Each Move NOT A P L I CA B L E and Main Laboratory
209 Engineers Forward OfficeLaboratory Each 2 10000 766300 1532600 -0shy
210 Additional Surveying Office Laboratory and Prime Cost 69809 1500000 1047146 -0-Communication Equipment
211 Contractors Expenses and Profit on Percent 69809 25 261787 -0-Prime Cost Item 210
212 Provide and Maintain Vehicles for ihe Engineers Staff Vmonth 304 Vmonth 24000 17100 7296000 5198400
301 Basic Survey and Setting Out km 370590 km 48500 13400 17973600 4965905
302 Clear Heavy Bush Hectare 514075 ha 23200 7500 11926540 3855563
303 Cleat Light Bush Hectare 70053 ha 15500 5000 10858215 3502650
304 Clear Grassy Hectare 1775 ha 12400 4000 2201000 710000
401 Prepare Sand Subgrade for Embankment m2 3335443 m 2 011 006 36689873 20012658
402 Prepare Clay Subgrade for Embankment m2 408450 m 2 023 011 9394350 4492950
501 Construct Standard Embankment i3 865895 m3 117 047 101309715 40697065
3502 Construct Special Embankment m3 254779 m 196 074 49936684 18853646
030 384035 129450503 Excavate Unsuitable Material m3 4315 m3 089
601 Base Course m3 538854 m3 310 120 167044740 64662480
602 Overhaul of Base Course Material m3km 46462 m3kr 028 010 1300936 464620
701 Remove Overburden from Surface Course Borrow Pits m3 260056 m3 060 016 15603360 4160896
702 Surface Course m3 457260 m3 545 210 249206700 96024600
703 Haul of Surface Course Material m3kmn 6572330 m3kr 0102 0034 67037766 22345922
TABLE 4 (Continued) Sheet 2 of 4
Item No Description
Unit of Measure
Total Revised Final Quantities
Contract Unit Price US $ RandPula
Final Revised Contract Amount US $ RandPula
801
802
803
Excavation and Backfill for Cuiverts up to 48 inches in diameter
Excavations for foundations of Culverts 48 inches and over
Backfilling culverts 48 inches and over
m3
m3
m3
558512 m3
94946 m3
322010 m3
480
270
490
330
140
360
2680858
256352
1577849
1843090
132923
1159236
804 Nestable Galvanized Corrugated Metal Pipe 18 inches in diameter 14 USSG
PIPE LM 249963 LM 4380 820 10948379 2049697
END SECTIONS Each 388 each 6660 225 2584080 87300
805 Nestable Galvanized Corrugated Metal Pipe 24 inches in diameter 14 USSG
PIPE LM 28104 LM 5560 1100 1562582 309144
Supply additional 24 inch diam Pipe 114035
END SECTIONS Each 34 each 10200 800 345800 27200
Supply additional End Sections 30600
806 Nestable Galvanized Corrugated Metal Pipe 36 inches in diameter 12 USSG
PIPE LM 19506 LM 10500 1600 2048130 312096
END SECTIONS Each 28 each 27600 2100 772800 58800
807 Nestable Galvanized Corrugated Metal Pipe 48 inches in diameter 12 USSG
PIPE LM 11522 each 13500 2200 1555470 253484
Supply additional 48 inch diam Pipe 10480
END SECTIONS Each 10 each 76200 4300 762000 43000
808 Nestable Galvanized Corrugated Metal Pipe 60 inches in diameter 10 USSG
PIPE LM 48768 LM 20400 2700 9948672 1316736
Supply additional 60 inch diam Pipe 47510
809
810
811
Excavate inlet and outlet drains mitre ditches and roadway ditches
Sand-cement Pitching
Clay slope Protection
m3
m3
m2
477781 m3
276769 m3
NA
110
2300
030
3000
100
525559
636569
-0-
143334
830307
-0shy
Supplied but not installed
mi -blN mN -m~ m ml m min nmlW arm~ nn- a a a a1 al a
TABLE 4 (Continued) Sheet 3 of 4
Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount No Description
812 Supply Nestable Galvanized Corrugated
Metal Pipe 18 inches in diameter 14 USSG
PIPE
END SECTIONS
901 Construct Maintenance Facility Complex
902 Water Pump
903 Contractors Expenses and Profit on Prime Cost Item 902
1001 Road Signs
1002 Guide Posts
1003 Kilometre Posts
Dayworks
TOTAL-SCHEDULE OF QUANTITIES
a
0) CO I CO 2
TAMS Staff Hotel Accommodation
Air Conditioners TCN Houses
CO 3
CO 4
NA (Progress Payment Permanent Material)
Additional TCN Housing
SUB-TOTAL
CO 5 POL Escalation Cost
CO 6 POL Escalation Cost
CO 7 POL Escalation Cost
SUB-TOTAL
LESS OVERPAYMENT
TOTAL POL ESCALATION COST
CO 8 Interim Allowance (Wage)
CO 9 Wage Escalation Cost
SUB-TOTAL
LESS OVERPAYMENT
TOTAL WAGE ESCALATION COST
Measure
LM
Each
Lump Sum
PC Sum
25
Each
Each
Each
As directed
Each
Final Quantities
238 LM
0 each
98
284 each
900 each
182 each
100
100
100
NA
6
100
100
100
100
100
US $
3400
6700
8520
As Billed
650000
As Shown
As Shown
As Shown
As Shown
As Shown
RandPula
900000
1000
1450
1500
130100
US $
809200
-0-
13014800
-0-
-0-
2419680
-0-
-0-
5999421
882317486
376898
3900000
4276898
RandPula
-0shy
-0shy
7308700
255223
63806
284000
1305000
273000
-0shy
310970881
842138
5307
780600
1628045
575601
1815344
77277517
79668462
1661539
78006923
297802
16022556
16320358
125720
16194638
TABLE 4 (Continued)
Item No Description
Unit of Measure
Total Revised Final Quantities
Contract Unit Price US $ RandPula
Sheet 4 of 4
Final Revised Contract Amount US $ RandPula
CO 10
CO 11
CO 12
Road Reserve cleared way Chobe River By-pass (included under items 302 303 and 304)
Importation Additional Sheeps foot roller (included under item 101)
Minor realignment of roadway at Nata
TOTAL CONSTRUCTION COST
100
100
100
886594384 406800487
ishy
I I I I I I I I
APPENDIX A
I CONSTRUCTION EQUIPMENT
I I I I U I I I I I
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT
I Descqription
2 Chevrolet Impala Sedan
5 jeep-Wagoner
7 jeep-Wagoner
1 Chevrolet Vega
23 Chevrolet Pickup
19 Mack Tractor (T675-8W)
2 Chevrolet Flat Bed
5 Mack-Platform Stake (T426-3500)
1 Mack-2000 Gal Fuel (T426-3500)
4 Mack Dump Truck 10 cy
2 Chevrolet Dump Truck 5 cy
1 Mack-Birmingham Tandum Lowboy Trailer
2 Mack-Gindy 25 Ton Tandum Semi Trailer
8 Heil- P3S 303 cy Dump Trailer
I 7 Fruehauf-TEO-F3-R 10000 Gal Tanker
5 Fruehauf-TEO-F2-R 6500 Gal Tanker
5 Fruehauf-Tandum Axle Dolly
2 Barko 14000 Telescopic Crane
6 Cobey 1062 Wagon Trailer
1 Cedarapids 443 Commander Crusher
1 Peerless Portable Base Stabilisation Plant
2 Atlantic International Water Treatment Plant
6 Caterpillar 631-B TractorS631-B Scraper
7 Caterpillar D8-H Dozer
2 4
Caterpillar D9- Dozer Caterpillar D6-C Dozer
2 Caterpillar 12-F Grader
5 Caterpillar 14-E Grader
U A-i
1
I
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (Cont)
Quantity
4
1
4
11Raygo
1
S1 2
ICaterpillar-200KW 3
1
1
1
1
1
3
2 2
2
I
1
2
2
I
1 2
8
1
j 8
1 4
9
1
Description
Caterpillar 966 Loader
Trojan 4000 Loader
Raygo 400A Compactor Vibrator
410A Compactor Vibrator
Vibro Plus Vibrating Sheepsfoot Roller
Bros 10000 Compactor
Bros 6000 Compactor
Generator Caterpillar - 125KW Generator
Little Reddevil Generator
Kholer 3KW Generator
Kholer 2KW Generator
Detroit Diesel Generator (2D-32)
Kholer Generator (5CKM61)
Hobart GR-3 03 Welders w trolley
Worthington 365 Compressor Worthington 160 Compressor
Kellypower Tamper
John Deere 2700 Disc Harrow10 Cut
ohn Deere 1630 Disc Harrow 7 Cut
Worthington WS-55 Rock Drill
Alemite Portable Service Station
Graco Lube Ranger
Worthington Wagon Drill
Layne Bowler Deep Well Pump
Layne Bowler Pump only
4 Centrifugal Pump
2 Centrifugal Pump
Columbian Steel Water Tanks 20000 US Gal
A-2
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (contd)
Quanti
1I Description
Caterpillar Parallel Shank Ripper
2 Fleco Blade Rake
4 Chainsaw
3 Gardner-Denver Compressor
5 Aerotron Radio Transmitters $1203
7 Aerotron Radio Receivers $2 10
16 SSB Radio Transceivers $1340
8 Auxilliary Radio Transceivers $1340
2 Cevy 4 x 4 Pickup Truck 8 Chevy 2 x 4 Pickup Truck
1 L B Smith Cone Crusher
2 Ford 4 x 4 (1164-14C Tractor)
2 Bros Sheepsfoot Roller
1 Hyster Towed Vibratory Compactor
During 1975 and 1976 the Contractor added the following listed equipment
1 Caterpillar No 14 Motor Grader
1 Caterpillar No 966 Loader
1 Trojan No 4000 Loader
1 Cone Crushing Plant 3 ft Standard Fine Bowl with 4 Deck Screens
4 Conveyor Units
A-3
I 1 I I I U I I
APPENDIX B
I I SOILS AND MATERIALS
I I 1 I I I I I 1
APPENDIX B
SOILS AND MATERIALS
(a) General
The road pavement is composed basically of two layers the surface
course and base course overlaying a compacted subgrade or embankment
The sources and volumes of the surface course and base course materials
are indicated in the Materials Utilization Diagrams included as Figures B-i
through B-4
(b) Subgrade
The subgrade soil consists primarily of aeolian fine sand except
for approximately 36 kilometers of the road for which the subgrade is a pan material consisting of clay In the pan areas special 1 Om thick
embankments were constructed with plasticity and fineness control of material
The subgrade and embankment soils were compacted to a minimum of 90
of modified AASHTO compaction The measured mean relative compaction
obtained immediately after compaction of the subgrade was 935 of the modified AASHTO maximum density
(c) Base Course
The majority of the base course materials are derived from aeolian deposits ie fine sand with a trace to some silty clay The
remaining base bourse approximately 15 of the total was obtained from pits having a large component of gravel The 15cm thick base
course is bank run or blended material for which the amounts of fines
and plasticity were controlled The base course materials were obtained from 123 base borrow pits and compacted to a minimum 95 of modified AASHTO density The measured mean relative compaction
directly after construction was 96 of the modified AASHTO maximum
density
(d) Surface Course
The 15cm thick surface course is well graded sandy gravel with
some silty clay fraction The materials for the road segment from
Kilometer 0+000 to Kilometer 173+000 are derived from calcrete deposits
while the materials for the remaining portion are derived from weathered
3-1
bedrock The surface course has controlled gradation plasticity and
durability to obtain sufficient strength to reduce ravelling to a minimum
particularly during the dry season and to resist the wear of traffic
Surface course materials have been obtained by screening crushing
and blending materials from 9 borrow areas and were compacted to a
minimum of 98 of modified AASUTO maximum dry density The comshy
posite properties for each borrow pit are indicated in the Average
Gradation Ourvesincluded as Figures B-5 through B-13 Directly
after construction of the surface course the measured mean relative
compaction was 100 of the modified AASHTO maximum density
B-2
N A TA K A ZUN GU LA RO0A D 70 033 90 CC
00 00 0 0 0+I 03- 30L K
0 I I
M 3 100 0002L [2
_
MATERIALS UTILIZATION DIAGRAM Fiure -I
NATA - KAZUNGULA ROAD
+--- 121
y T
MATERIALS UTILIZATION DIAGRAM Fgure R-Z
NAT A - KAZ UN GULA ROAD
07 2 230K300 220 220 232 252
I 3 3 2
MATERIALS UTILIZATION DIAGRAM Figure 2-3
itLT-m
CHOBE RIVER BY-PASS ROAD 02__ Q___ 0 60 40 - 0 50 0 i
-F-CEL
-Tl J-II II
MATERIALS UTILIZATION DIAGRAM Figure B-4
3 SIEVE ANALYSIS SMI~ia VIII
IY UN In~ VI STAISRS SIEVE NUMBfh SUE9 - usuLguNuus O-- aoIiUl- I1
11I a to to 0 i oIIIa lf I
II
SN Cu ye B
II N
o
i B _ ___~ N II 1 l s - Curi e At-
I 2 I a 6 4 2 i5 4 3 2 a -
GRAIN I IZE MILTERS
SILT AND CLAY SOILS GRAVEL SAND
I NUMBE1RSAMPLE DEPTH LL KIE IPTIONIELEV P1 ECIT
A Composit 38 19 CrusherAverage Runof 192 samples
B Composit 33 17 Surface Course Blend asAverage of 236 samples placed
MDD 1960 kgm Los Angeles Abrasion = 42 Average Blend Added 15=
REPUBLIC OF BOTSWANA TI PPETTS-ASSETT-NcCAIThY-STRATTOU MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY BOTSWANA-ZAMBIA GRAIN SIZE DISTRIBUTION BY DmArTE Q76HIGHWAY j PIT 2A DOi FIGURE B-5
E ANLYSISSIEVE NALYSIS NI
OPEING - In jS PhIMS-SEVE iNRh3EN son - MILLIMETER
V11 6plusmn SSIEVE
6 i S 0-4 0 10 miUS) 3055 3 001mesa a
9 I I I - -
Crye B
S bull
1TCrii INN20 1 e A- NI deg I FIK 46591 2 a045 4 2 1115 5 2 6
GRIISZ IN MILLIMETERS
COACE iE NtIUM FI SILT AD CLAY SOILSGRAVEL SAND
5r IBSAMPLE DEPTH ELEV LLP1
A Composite 28 10 Crusher Run Average of 229 samples
B Composite 28 11 Surface Course Blend as Placed Average of 58 samples
2050 kgm3 Averaoe Blend Added shy
TIPPETTS-ASETT-NCCARTIY-STATTONREPUBLIC OF BOTSWANA NEW YORK NY
MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS
BRAIN SIZE DISTRIBUTION BY NCZ jAATE9 876BOTSWANA-ZAMBIA
HIGHWAY PIT 14 amp 14A OWN FIGURE B-6
i
S ANALYSIS 01 ANALYSIS
SIEVE - n -IIII- SIZ-MII- - IN i
It a s 1
Ue a -- e B
- 1 -I-[_I - I I I
6l51 10 8 $514 1 O is 05I I 21 8GANSZNILMTR OA RE Filo 9OA-1i 1DI UM F log S ILT AND CLAY SO ILS
GRAVEL nSAND
E--l I UNEASMPLEDEPlTH ELEV LL P1 KWKIPTION
A Composite 36 19 Crusher Run
Average of 116 Samples
B Composite 36 15 Surface Course Blend Average of 138 samples
H GHWA E SA 18 SILT ANDURCLA-SIL
3kgm Los Angeles Abrasion 28
Av agau Pnd AAd = 907 ITI UETT$-ABBTT-NcentcentARTNY-STRATTON
NEW YORK NY
REPUBLIC OF BOTSWANA
MINISTRY OF WORKS amp COM24UNICATIONSIT NINEERS1
I I MGIELI7 I 1 8AIIGIWAE
I
4
SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU
V 1 Oe 001l
- -r--I-I -- I
S E- -IN S
KI zz7llfl$zIIIti z I
low560
20
2
IGRAIN SIZE IN MILLIMETERS
COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS
GRAVEL SAND
SAMP DEPTH ELEV L P1 0NBERIIPTI
A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples
B Composit( 28 13 Surface Course Blend as Placed
Average of 85 samples
Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA
REPUBLIC OF BOTSWANA TI EfTTS-AIETT-NCARTY-STRATTOi ITTqTPI yen O WOVQ A n rn WTraTTn~lz ENGINEERS NEW YOlK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8
-D IUR IB
II SIEVE ANALYIIS 1411 I LYIlMll
[urn $11min - I I ITUSE IVV I - mampINimums1 -l0 n 001
a1 i 4 is s 0 aL w I 2 0665S a a 4 i 0i
-7sl
96---
I RI IE IN M IEER
CfliEI FIN g o au SIT SILFIN M40 5C o432 14593 ry B6
ver 7 samples
NUMBE NERPI
Ay I GRAIN SIZE IN MILLIMETR
5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND
A Q A- Aii dd d~A
IMUBEIRIIIIPIi
3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables
B Composit 26 13 Surface Course BlendU as Placed
Average of 79 samples
AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =
REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9
SIEVE ANALYSIS IMmv na awLYoia
SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I
I- 01 001
e---__
Ir1 -NIP_]
20
OA
$05 9 2
E
I
86543
I
7tN
2 1 65
_OAlEED t
5 2
FN
I
GRAIN SIZE IN MILLIMETERS
1 111I
NU BE GRAVEL
COARSE
I
MEDIUM
I SAND
FSILT AND CLAY SOILS
SAMPLE4 DEP EEY 1 SCBI1PTIORI
A
B
Composite
Composite
38
26
17
13
Crusher Run Basaltic Aggregate
Average of 176 samples
Surface Course Blend -s Placed Average of 58 samples
Average MDD = 2135 kgm Los Angeles Abrasion = 38
Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY
WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971
3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10
SIEVE ANIALYSIS lNVINI1111 ANALYSIS
I EV OPE IN - INI8 TOSIIEENN1-MLII
I
I - - i ii 0
I GRI SIZEto N OILS 1
I ANDLI IS
G VELIZE I
IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL
-APL ESN
DEPTH ELEY LL PI DESCRIPTIONNUSMBE
3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples
B Composite 26 13 Surface Course Blend as Placed Average of 58 samples
Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34
Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY
BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11
___ I
SIEVE ANALYSIS W11 ANKEm SIS
SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS
01 001
sodego
i i
U Ae
6 559 2 a65 3 2 1 6532 S
II GRAIN SIZE INMILLIMETERS
=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL
GRAVEL SN
I SAMPE DEPTH ELEV LL P)S DESCRIPTION
A omposite 28 10 Crusher Run
SAverage of 72 samples
B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples
Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20
REPUBLICUINISTRY 0OF OF
BOTSWANA WORKS amp COMMUNIGTIONS
TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12
I
SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM
-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U
I _
I1li
Ia _ Cu ve
N IC A11
IQI II
1 IG S IIIMETE
I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND
SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION
A Composite 34 15 Crusher Run Average of 74 samples
B Composite 29 12 Surface Course Blend as Placed
Average of 42 samples
MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15
REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA
ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N
NEW sy cKA
YORK NYT E-2 5 1 7 7
HIGHWAY PIT 32A Mwe FIGURE B-13
I I I I I I I I
APPENDIX C
I WATER WELL LOCATIONS
I I I I I I I I I
APPENDIX C WATER WELL LOCATIONS
WELL NO 3
Location Km 171 Lt of centerline 200 meters
Drill - 6 x 392
Ream - 8 x 92
Case - 6 x 84
Test - 24 Hours - 276
Pump 6000 G P H
Total depth - 392
Pumped at 150
24 Hr Drawdown - 3
Water Good
WELL NO 4
Location Km 175 - Lt of centerline 100 meters
Drill - 6 x 380
Ream - 8 x 82
Case - 7 x 82
Test - 276
Pump 1800 G P H
Total depth - 380
Pumped at 200
Drawdown 24 Hr - 100
Water Good
WELL NO 5 (Govt No 2436
Location Km 178 - Lt of centerline 115 meters
Test -276
Pump - 1400 G P H
Total depth - 160
Pumped at 140
24 Hr Drawdown - 60
Water Good C-1
WELL NO 6
Location Km 183 - Lt of centerline 60 meters
Drill - 6 x 436
Ream - 8 x 86
Case - 7 x 86
Test - 276
Pump - 500 G P H
Total depth - 436
Pumped at 250
24 Hr Drawdown - 150
Water Good
WELL NO 7 - (Govt No 2435)
Location Km 189 - Rt of centerline 100 meters
Clean amp Test
Pump - 6000 G P H
Pumped at 140
24 Hr Drawdown - 10
Water Good
WELL NO 14
Location Km 252 - Lt of centerline 100 meters
Drill - 6 x 250
Ream - 8 x 53
Case - 6 x 53
Test - 276
Pump - 6000 G P H
Total depth - 250
Pumped at 150
24 Hr Drawdown - 6
Water Good
C-2
WELL AT KM 256 MAINTENANCE FACILITY NO 3
Location Km 256 - Lt of centerline 200 meters
Depth - 100 feet
Water Rest Level - 42 feet
Depth Pump Set - 70 feet
24 Hr Test - 1800 G P H
WELL NO 15
Location Km 245 - Rt of centerline 40 meters
Drill - 6 x 260
Ream - 8 x 54
Case - 54
Test -276
Pump - 1500 G P H
Total depth - 260
Pumped at 200
24 Hr Drawdown - 140
Water Good
WELL NO 16 Location Km 236 -Rt of centerline 30 meters
Drill - 6 x 250
Ream - 8 x 22
Case - 6 x 22
Test - 276
Pump -6000 G P H
Total depth - 288
Pumped at 150
24 Hr Drawdown - 10
Water Good
C-3
WELL NO 17
Location Km 224 - Rt of centerline 30 meters
Drill - 10 x 89
Case - 8 x 85
Drill- 8x 43
Drill - 6 x 38
Case -6 x 132
Test - 276
Pump -2000 G P H
Total Depth - 170
Pumped at 100
24 Hr Drawdown - 11
Water Good
WELL NO 18
Location Km 217 - Lt of centerline 200 meters
Drill -i0 x 70
Case - 7 x 70
Drill - 7 x 52
Drill - 6 x 88
Case - 6 x 122
Test - 276
Pump 2400 G P H
Total depth - 210
Pumped at 200
24 Hr Drawdown - 140
Water Good
C-4
WELL NO 19
Location Km 213 - Lt of centerline 100 meters
Drill - 10 x 44
Case - 8 x 40
Drill - 8 x 76
Drill 6 x 130
Case - 6 x 120
Test - 276
Pump - 6000 G P H
Total depth - 210
Pumped at 60
24 Hr Drawdown - 10
Water Good
WELL NO 20
Location Km 143 - Rt of centerline 100 meters
Drill - 10 x 240
Case - 7 x 220
Drill -6 x 378
Case - 6 x 240
Case - 5 x 240
Test - 276
Pump -1500 G P H
Total depth - 618
Pumped at 460
24 Hr Drawdown - 105
Water slightly salty to taste but drinkable
C-5
WELL NO 23
Location Km 139 - Lt of centerline 100 meters
Drill - 12 x 290
Place amp Extract Case - 10 x 290
Drill - 8 x 30
Drill - 6 x 40
Case - 8 x 290
Case - 6 x 320
Test - 276
Pump - 1200 G P H
Total depth - 360
Pumped at 330
24 Hr Drawdown - 120
Water salty
WELL NO 24
Location Km 135 - Lt of centerline 500 meters
Drill - 12 x 270
Drill - 10 x 10
Case - 10 x 270
Drill -8 x 30
Case - 8 x 290
Case -6 x 310
Case - 5 x 320
Test -276
Pump -4000 +G P H
Total depth - 320
Pumped at 270
24 Hr Drawdown - 2
Water Salty
C-6
I
5
WELL KM 205 MAINTENANCE FACILITY NO 2
Location Km 105 - Lt of centerline 40 meters
Depth - 302 feet
~ Water Rest Level - 82 feet
Depth Pump Set - 150 feet
48 Hr Test - 3000 + G P H
WELL NO 26
Location Km 82 - Lt of centerline 100 meters
Drill - 12 x 145
5 -8 x145
Drill - 8 x 23
-Case
I Drill - 7 x 10
Case - 7 x 168
I Case - 6 x178
Test - 276
Pump - 1200 G P H
Total depth - 306
I Pumped at 140
24 Hr Drawdown - 35
I Water Good
C
I 0-7
WELL NO 27
Location Km 77 - Lt of centerline 100 meters
Drill - 12 x 174
Install amp Extract Case - 10 x 174
Case - 8 x 174
Drill - 9 x 68
Drill - 8 x 64
Case - 7 x 242
Case - 6 x 306
Test - 276
Pump - 4000 + G P H
Total Depth - 306
Pumpe at 240
24 Hr Drawdown - 0
Water Good
WELL NO 28- (Govt No 2465)
Location Km 63 - Rt of centerline 100 meters
Clean amp Extract Case - 300
Ream - 10 x 98
Ream - 8x 27
Ream - 6 x 12
Case - 8 x 98
Case - 6 x 125
Test - 276
Pump - 1000 + G P H
Total depth - 137
Pumped at 130
24 Hr Drawdown - 33
Water Good
C-8
WELL NO 30
Location Km 47 - Rt of centerline 400 meters
Drill - 12 x 132
Case - 10 x 89
Install amp Extract Case - 12 x 43
Drill - 10 x 117
Case - 7 x 242
Drill - 6 x 183
Install amp Extract Case - 6 x 408
Test - 276
Pump - 1000 G P H
Total depth - 408
Pumped at 160
24 Hr Drawdown - 77
Water Salty
WELL NO 31
- Lt of centerline 200 metersLocation Km 44
Drill - 12 x 110
Case - 10 x 100
Drill - 10 x 142
Case 8 x 142
Drill - 8 x 250
Case 7 x 392
Drill - 6 x 78
Test - 276
Pump - 3000 G P H
Total depth - 502
Pumped at 160
24 Hr Drawdown - 44
Water Salty
C-9
WELL NO 32
Location Km 42 - Lt of centerline 100 meters
Drill - 12 x 108
Case - 10 x 108
Drill - 10 x 212
Drill - 8 x 120
Case - 6 x 340
Case - 8 x 182
Test - 276
Pump - 3000 + G P H
Total depth - 448
Pumped at 160
24 Hr Drawdown - 20
Water Salty
WELL NO 34
Location Km 35 - Lt of centerline 200 meters
Drill - 12 x 230
Install amp Extract Case - 10 x 230
Drill - 8 x 30
Case -6 x 260
Drill - 6 x 160
Case -5 x 324
Case - 8 x 20
Test - 276
Pump -1000 + G P H
Total depth - 420
Pumped at 150
24 Hr Drawdown - 100
Water Salty
C-10
WELL NO 36
Location Km 7 N E along old track from Km 63
Drill - 12 x 180
Case - 10 x 180
Drill - 10 x 231
Case - 8 x 211
Drill- 8x 254
Case - 6 x 245
Test -276
Pump -4000 + G P H
Total depth - 265
Pumped at 180
24 Hr Drawdown - 0
Water Good
C-11
I 3 I 1 I I I I B j APPENDDC D
SYNOPSIS 0 KEY CORRESPONDENCE
3 DURING CONSTRUCTION
I pound I I I 1 I I
On September 1 1973 the Contractor confirmed the
estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts
On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project
On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be
obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated
On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine
On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation
On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension
On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension
On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval
On October 15 1973 the Engineer returned the construction progress schedule for correction
On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim
D-I
On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor
On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project
On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25
On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter
On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents
On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract
On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised
On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading
On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule
On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request
On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period
D-2
On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report
On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material
On August 19 1974 the Contractor submitted an updated construction progress schedule for approval
On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases
On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor
On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor
On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project
On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course
On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country
On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course
On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions
On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule
On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress
D-3
On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract
On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana
On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor
On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion
On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations
On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases
On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season
On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees
On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections
On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project
On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course
On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project
On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract
D-4
October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request
On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor
On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620
On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project
On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y
completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense
On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted
On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project
On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim
On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic
On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor
On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976
D-5
On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time
On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares
On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material
On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500
On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor
On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula
On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana
OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected
On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road
On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road
Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10
On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued
On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced
On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091
On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091
Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued
D-6
I I IUUU U U UU I U
E PROJECT PHOTOGRAPHS
I IIIU U I
I Crushing Plants Surface Course
Pit 2A
Pug Mill Blending Surface Course
Pit 25A
II Surface Course
Pit 25A
UURYPTOERTOSE Pug Mil Blending
Road Reserve Bush Clearing
Km 242
U
Embankment Construction Km 287
IN
Road Construction Water Supply
Km 189
ROADWAY UNDER CONSTRUTION
II
E-2
Stockpiling Material Base Course
Special Embankment Construction Km 232
Watering of Embankment Km 257
ROADWAY UNDER CONSTRUCTION E-3
Culvert Assembly
Twin Culvert with Sand-Cement Pitching
Multiple Culverts with Sand-Cement Pitching
CULVERT INSTALLATIONS E- 4
AT Km 25
AT Km 194
Emergency Landing Strip Kra 2605
FINISHED ROADWAY E- 5
AT Km 286
AT Chobe By-Pass Junction Km 297
I Chobe By-Pass Road Near Ngoma Bridge
E-6FINISHED ROADWAY
I INTRODUCTION
This is the final report on the construction of the Botswana-Zambia
Highway Project accomplished between April 25 1976 and January 19 1977
The report has been prepared in accordance with Guidelines for Preparing
Final Report dated September 30 1963 as issued by United States Agency for
International Development
A DESCRIPTION OF PROJECT
The Project consists of three sections of all-weather two-lane highshy
way with a total length of 370 kilometers including
1) The Nata-Kazungula section approximately 300 kilometers
in length beginning at Nata (See Figure 1) on the Francistown
Nata road and extending north west to the existing ferry cross shy
ing to Zambia on the Zambezi River at Kazungula
2) The Chobe River By-Pass section approximately 65 kilometers
in length beginning near Kazungula at Kilometer 2973 on the
Nata-Kazungula highway and extending south west skirting
the town of Kasane through the Chobe National Park to the
bridge across the Chobe River at Ngoma
3) The Pandamatena Access Road 5 kilometers in length
beginning at approximately Kilometer 198 on the Nata-Kazungula
highway and extending east to the village of Pandamatenga
on the Botswana-Rhodesia border
Construction work included clearing and grubbing of 1392 hectares
earthwork of approximately 1120000 cubic meters 3400 meters of culvert
1538800 cubic meters of base course and 457200 cubic meters of surface
course
The project design was performed under an agreement dated June 15
1971 for professional services between the Government of the Republic of
Botswana and Tippetts-Abbett-McCarthy-Stratton of New York U S A
-1shy
B FUNDING
Funds for construction and construction supervision of the Project
were provided by loan agreements between the Government of the Republic of
Botswana and the United States of America acting through the Agency for
International Development (AID) The funds allocated were in the amount
of US $16600000 and were derived from the following sources
-U S $12600000 AID Loan No 690-H-001
-U S $ 4000000 First Amendment No 690-H-001A
C CONTRACTUAL ARRANGEMENTS
A contract for construction of the Botswana-Zambia Highway Project
was signed on Tune 26 1973 between the Government of the Republic of Botswana
and Grove International Corporation and Grove Shepherd Wilson and Kruge Inc
a joint venture for an estimated total cost of construction of US $897784200
and Rand 316082500 The contract provided for completion of the project
by April 25 1976 a 975 day period from Notice to Proceed given on August 22
1973
There were two amendments to the contract both dealing with the condishy
tions and limits for Off-Shelf purchases
A contract for supervision of construction was entered into by the Government
of the Republic of Botswana and Tippetts -Abbett-McCarthy-Stratton (TAMS) in
the form of a supplement to the basic agreement for design of the project The
supplemental agreement was dated July 2 1973 Two amendments the first
dated September 29 1976 and the second dated July 26 1977 extended the
the time for completion and modified the original estimate for cost of inspection
services
D MODIFICATIONS OF CONTR4tCT
During the course of construction twelve Change Orders approved
and signed by the Government were issued These orders are briefly described
in Table 1
-2shy
5307
TABLE 1 CHANGE ORDERS
Change Order Cost No Purpose US$ RandPula
1 Hotel rentals for Engineers staff while awaiting completion of housing units 842138
2 Additional air-conditioning units for staff housing 376898
3 Arrangements for monthly advance progress payments for permanent materials on site shy
4 Addition to the number of TAMS staff housing units 3900000 780600
5 For escalation of POL costs between 11 November 1973 and 11 February 1974 575601
6 For additional escalation of POL costs between 11 February 1974 and 14 May 1974 1815344
7 For additional escalation of POL costs between 14 May 1974 and 19 July 1974 77277517
LESS OVERPAYMENT (-)1661539
8 Interim allowance by GOB authorization to all employees to maximum rate of R500 per month between April 1973 and March 1974 297802
9 Escalation of minimum wage rates for field personnel 16022556
LESS OVERPAYMENT (-)125720
10 Reduction InRoad Reserve clearing on Costs included in Chobe By-Pass Road amounts in pay
items 302 303 and 304
11 For increase in mobilization costs to Costs included in cover importation of additional compaction amounts in equipment pay item 101
12 For minor realignment of roadway at Costs included in Nata contract pay items
TOTALS 4276898 95829606
-3shy
II STAFFING Excluding the mobilization and demobilization periods the major conshy
struction efforts took place during the calendar years 1974 1975 and 1976
A summary of the project staffing is presented in Table 2
TABLE 2
AverageMaximum Staffing Levels
Contractors Staff Engineers Staff
YearSource US Botswana TCN Code 941 US Botswana TCN
1974 17 232 2 22 4 11 9 1975 18 302 3 43 4 12 9
1976 15 290 3 40 4 13 7
Maximum 20 359 5 49 4 14 9
A paving specialist visited the Project in December 1973 and une 1974
in connection with proposals for upgrading the Project and again in March 1975
in connection with selection of material for the surface course
A partner from the Consultants home office made periodic visits to the
Project sites
III TRAINING
The Contractor trained Botswana Staff as drivers equipment operators
and oilers surveyors soils technicians mechanics helpers stewards and
maintenance workers
The Engineer trained Botswana Staff as soils technicians surveyors
drivers draftsmen and office clerical workers
IV CONSTRUCTION EQUIPMENT
In compliance with a requirement of the Contract Documents the Conshy
tractor presented a schedule of major plant and equipment to be used on the
Project Some adjustments were made to the listing as the job progressed
-4shy
Advances for the purchase of new items (materials construction plant
equipment tools spare parts maintenance supplies and buildings furniture
and equipment for the Contractors and Engineers camps) totaling U S
$124443700 and local currency Rand 225000 were made available to the
Contractor as provided for by the Contract Documents Reimbursement of
these advances were made in January1974 in accordance with the Contract
requirements
The major items of construction and shop equipment imported by the
Contractor for use on the project are listed in Appendix A
V MATERIALS UTILIZED
A SOILS
The formation consists of two layers the surface and base courses
placed on a compacted subgrade or embankment Base course materials were
obtained from 123 borrow pits along the roadway Surface course materials
which required processing were obtained from 9 borrow areas Appendix B
contains the Material Utilization Diagrams which show the sources of these
borrow materials and their utilization along the road Also included in Appendix
B are the Average Gradation Curves of the processed surface course materials
B WATER
Water for construction was obtained from 24 water wells drilled by the
Contractor Appendix C contains information on locations depth and yields
of the wells
VI PROTECT HISTORY
A GENERAL The engineers inspectors and materials technicians employed by TAMS
systematically inspected construction operations and sampled and tested mashy
terials being incorporated in the work to ensure compliance with contract reshy
quirements Each month a determination was made of the work accomplished
-5shy
and eligible for payments and pay quantities for the Contractors monthly
progress estimates were certified
The Engineers survey parties verified reference points established
by the Contractors personnel for vertical and horizontal control points estabshy
lished along the preliminary base line and verified limits of bush clearing
flagged by the Contractor After the final line was staked detailed cross shy
sections were taken for computation of pay quantities Check measurements
were made periodically to verify the construction performed by the Contractor
As sections of the Project were completed final measurements were taken and
as-built plans prepared
Periodic progress reports and charts were prepared for the Government
and AID throughout the construction phase
After substantial completion of the works in January1977 a final inshy
spection of the project was made On January 19 1977 a Certificate of
Completion was issued by the Engineer As required by the Contract the
six-month maintenance period commenced
A synopsis of the more important correspondence initiated or received
by the Consultant in connection with administration of the Contract is included
in Appendix D
B SEQUENCE OF EVENTS
During late July and early August1973 the Contractor began to mobilize
personnel at Pandamatenga preparatory to commencing construction of the main
camp facilities
A sub-contract for construction of the engineers facilities atd some
items of the Contractors camp was negotiated between Grove International
and Botzam Services of Livingstone Zambia During September 1973 the subshy
contractor mobilized men equipment and material at Pandamatenga and comshy
menced construction on main camp housing units
On September 20 1973 the Contractor having been denied access
through the Botswana-Rhodesia Border at Pandamatenga for mobilizing equipment
material and supplies decided to shift the main camp site to the vicinity of
Kazungula The camp site was established at Kilometer 3+400 on the Chobe
River By-Pass road approximately 8 Kilometers east of the village of Kasane
3 -6shy
During late October construction of housing shops offices wareshy
houses and ancillary facilities commenced at the relocated main camp site
The camp facilities were substantially completed by the end of March 1974
Temporary satellite camps were later established at Pandamatenga at Kilometer
105 and at Kilometer 63 on the Nata-Kazungula segment of the project
Mobilization of construction equipment personnel material and supplies
began in early October 1973 and continued through April 1974
During the remainder of 1973 the construction efforts were concentrated
on construction of the main camp site A small amount of clearing grubbing
and earthwork was accomplished on the Chobe River By-Pass Road and on the
northern end of the Nata-Kazungula road
1 Principal Construction Accomplishments During 1974
Clearing and Grubbing - 5366 hectares completed between
Kilometer 297 and Kilometer 169 on the Nata-Kazungula segment
of the project
- Earthworks - excavation and borrow quantities came to a total
of approximately 506500m with the major portion of this work
performed between Kilometer 297 and Kilometer 196 on the Nata-
Kazungula segment of the project
- Pipe culverts - installed 59 pipes ranging in size from 18 to 60
diameter for a total of 1129 linealmeters between Kilometer 297
and Kilometer 196 on the Nata-Kazungula segment and from
Kilometer 0+000 to Kilometer 3+500 on the Pandamatenga Access
Road
Base Course - approximately 113600m placed between Kilometer
297 and Kilometer 197 on the Nata-Kazungula segment and from
Kilometer 0+000 to Kilometer 2+350 on the Pandamatenga Access
Road
Surface Course - approximately 19000m was placed between
Kilometer 292 and Kilometer 273+500 on the Nata-Kazungula segment
5-7shyI
2 Principal Construction Accomplishments During 1975
- Clearing and Grubbing - 634 hectares completed between
Kilometer 169 and Kilometer 2+000 on the Nata-Kazungula
segment between Kilometer 0+000 and Kilometer 14+000
on the Chobe River By-Pass segment and from Kilometer 2+350
to Kilometer 5+275 on the Pandamatenga Access Road
- Earthworks - excavation and borrow quantities came to a total
of 379145m3 with the major share of this work performed
between Kilometer 196 and Kilometer 49+000 on the Nata-
Kazungula segment and on the Pandamatenga Access Road
- Pipe Culverts - 69 pipes were installed ranging in size from
18 to 60 in diameter for a total of 1308 lineal meters
between Kilometer 200 and Kilometer 65 on the Nata-Kazungula
segment and from Kilometer 0+000 to Kilometer 5+200 on the
Pandamatenga Access Road
Base Course - approximately 219000m was placed between
Kilometer 197 and Kilometer 57 on the Nata-Kazungula segment
and on the entire 52 kilometers of the Pandamatenga Access
Road
Surface Course - approximately 177 000m of surface material
placed between Kilometer 273 and Kilometer 130 on the Nata-
Kazungula segment
3 Principal Construction Accomplishments During 1976
- Clearing and Grubbing - completed 2188 hectares between
Kilometer 2+000 and Kildmeter 0+000 and between Kilometer
297+300 and Kilometer299+600 on the Nata-Kazungula segment
and between Kilometer 14+000 and Kilometer 65+000 on the
Chobe River By-Pass segment which completed this item of
work
- Earthworks - excavation and borrow quantities came to a total
of 235092m which completed this item of work
-8shy
Pipe Culverts - 36 pipes were installed ranging in size from
18 to 48 diameter for a total of 973 lineal meters The
major share of this work was performed on the Chobe River
By-Pass segment
Base Course- 206120m3 was placed on the Nata-Kazungula
road between Kilometer 57+600 and Kilometer 0+000 and between
Kilometer 297+300 and Kilometer 299+588 and on the Chobe River
By-Pass road between Kilometer 0+000 and Kilometer 65+048
Surface Course - 260878m placed between Kilometer 130+000
and Kilometer 0+000 on the Nata-Kazungula road and between
Kilometer 0+000 and Kilometer 65+048 on the Chobe River By-Pass
Road
4 Principal Construction Accomplishments During 1977
The Contractor continued to work on final clean-up and corrective
work in accordance with the punch list provided by the Engineer On January
19 1977 the Completion Certificate was issued with a list of outstanding
deficiencies attached These were rectified by the Contractor during the
early part of the six-rnnth maintenance period The Contractor in compliance
with the Engineers instructions installed 10 additional 18 diameter CMP
culverts on the Nata-Kazungula road between Kilometer 236 and Kilometer 238
Two additional pipes were installed at Kilometer 6+540 on the Chobe River
By-Pass Road Rock was placed on sand fill slopes and at culvert inlets and
outlets to guard against erosion on numerous sections of the Nata-Kazungula
Road and Chobe River By-Pass Road The Contractor maintained the project
until July 19 1977 when a Certificate of Maintenance was issued
C PROTECT SCHDULING AND DELAYS
On October 5 1973 as required by Clause 12 Part II-Conditions of
Particular Application of the Conditions of Contract - the Contractor submitted
his proposed construction schedule for the project The schedule was returned
to the Contractor on October 16 1973 for modifications It was resubmitted
and finally approved on March 19 1974
-9shy
In October 1974 the Contractor presented a revised construction schedule
It was not approved by the Engineer who informed the Contractor that the
actual rate of progress was far below that projected by the schedule and reshy
quested an explanation as to what steps were contemplated to bring progress
on the project up to schedule
On November 6 1974 the Contractor again presented a revised conshy
struction schedule reflecting a completion date beyond the contract period for
completing the Project The Contractor made reference to conditions which
had allegedly caused delays to progress on the Project and stated that claims
would be presented requesting time extension for completion of the Project
The revised schedule was not approved pending presentation by the Contractor
of all supporting details
By the end of December 1974 the Contractor had completed 29 percent
of the work then specified in the Contract as modified by ten change orders
This compared with 55 percent scheduled to be completed according to the
approved progress schedule
On February 27 1975 the Engineer notified the Contractor that progress
was continuing to fall further behind the approved construction schedule and
requested the Contractor to submit in writing his plans for bringing progress
up to schedule in compliance with pertinent provisions of the Contract On Tuly
24 1975 the Contractor again presented a revised construction schedule reflectshy
ing a completion date of August 31 1976 This schedule was accepted by
the Engineer in September 1975 with the provision that acceptance of the
schedule should in no way be construed as an approval for extension of time
for completion of the project
By the end of 1975 the Contractor had completed 63 percent of the work specified in the contract as compared with 73 percent projected in the revised
construction schedule
On March 11 1976 the Contractor presented the 6th revision of the
construction schedule reflecting a completion date of December 31 1976
This schedule is included herein as Figure 2 The schedule was accepted by
the Engineer on March 24 1976 with the provision that acceptance of this
schedule should in no manner be construed as an approval of extension of time
for completing the project
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LEGEND CONSTRUCTION PROGRESS CHART BOTSWANA-ZAMBIA HIGHWAY
WORK ELEMENT lt I
MOBILIZATION 7 T z ltgt 7gtlt74gtlaquo 7
GENERAL gt gt lt lt+ $ lt2740gt77
SURVEYS
AND SITE CLEARING
PREPARESUGRADE lt gt
7+47
I EARTHWORKS ~kgt1 E ~gt07 gt0gt0 ~laquolt gtgt~lt7laquogt 77gt
BASE COURSE
SURFACE COURSE ~lt 7ltgtlaquoD4
+4 7iA
gt
ltgt7 77 gtlt4lt
P
DRAINAGE I-shy___MAINTENANCEI I _ _ _ _
FACILITIES - -gt 7 7 7 7lt7 ltgttVViV77W7vV~7~
HIGHWAY HARDWARE lt
CHANGE ORDERS AND I
DAY WORKS lt
TOTAL
VII FINANCIAL SUMMARY
As indicated in Section I-B of this report the funds available (from
AID) for the construction of this project were in the amount of U S $16600000
The disbursements of monies for the construction and construction supervision
through May 31 1978 are summarized in Table 3 along with the original esshy
timated amounts for comparison
TABLE 3
Disbursements Through Original Estimated
May 31 1978 Amounts
US $ RandPula US $ RandPula
Construction Costs (Grove International See Table 5) 882317486 310970881 897784200 316082500
Change Orders (From Table 1) 4276898 - 95829606
Supervision of Construction (TAMS) 129796299 - 135468100 -
TOTALS 1016390683 406800487 1033252300 316082500
From original contracts and supplements through May 31 1978
Table 4 presents a summary of final construction costs including
those by Contract Pay Items disbursed to the Contractor (Grove International)
The above listed costs do not include back charges on the loan which
charges are not available to the Engineer
The Contractor has submitted a series of claims requesting extensions
of time and reimbursement for claimed additional costs These claims are
currently under review by the Engineer A supplemental report will be issued
by the Engineer after the Contractors claims have been resolved and will
include any additional costs and time extensions awarded to the Contractor
Assuming an average rate of exchange of 1000 Pula or 1000 Rand
equal to 1350 U S Dollars and neglecting bank charges the approximate
loan balance as of May 31 1978 was U S $940000
-12shy
An average conversion rate of exchange has been used to estimate
the loan balance since the actual rate varied and actual draw-down figures
are not available to the Engineer
At the time of Project commencement the currency of Botswana was
the Rand In August 1976 the Botswana Government changed over from the
Rand to the Pula as the official currency During the course of construction
local currency disbursements have been made to the Contractor in both Rand
and Pula
-13shy
--- =1m =- M Il-- M=M m -
Sheet 1 of 4TABLE 4 - SCHEDULE OF FINAL CONTRACT QUANTITIES
Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount RandPula
No Description Measure Final Quantities US $ RandPula US $
101 Mobilization Lump Sum 10000 57077200 58360600 -0shy
201 Engineers Staff Housing 2-Bedroom House Each 1 3333 1300000 272100 1300000 272100
202 Engineers Staff Housing 3-Bedroom House Each 3 10000 1400000 339300 4200000 1017900
203 Engineers Staff Housing Technicians House Each 4 10000 650000 130100 2600000 520400
204 Engineers Staff Housing Jr Staff Housing Each 16 10000 112500 19600 1800000 313600
205 Moving amp Re-erection of Engineers Staff Housing Each move NOT APPLICABLE
206 Engineers Main Office Lump Sum 10000 1800000 306300
207 Engineers Main Laboratory Lump Sum 10000 2600000 407700
208 Moving amp Re-erection of Engineers Main Office Each Move NOT A P L I CA B L E and Main Laboratory
209 Engineers Forward OfficeLaboratory Each 2 10000 766300 1532600 -0shy
210 Additional Surveying Office Laboratory and Prime Cost 69809 1500000 1047146 -0-Communication Equipment
211 Contractors Expenses and Profit on Percent 69809 25 261787 -0-Prime Cost Item 210
212 Provide and Maintain Vehicles for ihe Engineers Staff Vmonth 304 Vmonth 24000 17100 7296000 5198400
301 Basic Survey and Setting Out km 370590 km 48500 13400 17973600 4965905
302 Clear Heavy Bush Hectare 514075 ha 23200 7500 11926540 3855563
303 Cleat Light Bush Hectare 70053 ha 15500 5000 10858215 3502650
304 Clear Grassy Hectare 1775 ha 12400 4000 2201000 710000
401 Prepare Sand Subgrade for Embankment m2 3335443 m 2 011 006 36689873 20012658
402 Prepare Clay Subgrade for Embankment m2 408450 m 2 023 011 9394350 4492950
501 Construct Standard Embankment i3 865895 m3 117 047 101309715 40697065
3502 Construct Special Embankment m3 254779 m 196 074 49936684 18853646
030 384035 129450503 Excavate Unsuitable Material m3 4315 m3 089
601 Base Course m3 538854 m3 310 120 167044740 64662480
602 Overhaul of Base Course Material m3km 46462 m3kr 028 010 1300936 464620
701 Remove Overburden from Surface Course Borrow Pits m3 260056 m3 060 016 15603360 4160896
702 Surface Course m3 457260 m3 545 210 249206700 96024600
703 Haul of Surface Course Material m3kmn 6572330 m3kr 0102 0034 67037766 22345922
TABLE 4 (Continued) Sheet 2 of 4
Item No Description
Unit of Measure
Total Revised Final Quantities
Contract Unit Price US $ RandPula
Final Revised Contract Amount US $ RandPula
801
802
803
Excavation and Backfill for Cuiverts up to 48 inches in diameter
Excavations for foundations of Culverts 48 inches and over
Backfilling culverts 48 inches and over
m3
m3
m3
558512 m3
94946 m3
322010 m3
480
270
490
330
140
360
2680858
256352
1577849
1843090
132923
1159236
804 Nestable Galvanized Corrugated Metal Pipe 18 inches in diameter 14 USSG
PIPE LM 249963 LM 4380 820 10948379 2049697
END SECTIONS Each 388 each 6660 225 2584080 87300
805 Nestable Galvanized Corrugated Metal Pipe 24 inches in diameter 14 USSG
PIPE LM 28104 LM 5560 1100 1562582 309144
Supply additional 24 inch diam Pipe 114035
END SECTIONS Each 34 each 10200 800 345800 27200
Supply additional End Sections 30600
806 Nestable Galvanized Corrugated Metal Pipe 36 inches in diameter 12 USSG
PIPE LM 19506 LM 10500 1600 2048130 312096
END SECTIONS Each 28 each 27600 2100 772800 58800
807 Nestable Galvanized Corrugated Metal Pipe 48 inches in diameter 12 USSG
PIPE LM 11522 each 13500 2200 1555470 253484
Supply additional 48 inch diam Pipe 10480
END SECTIONS Each 10 each 76200 4300 762000 43000
808 Nestable Galvanized Corrugated Metal Pipe 60 inches in diameter 10 USSG
PIPE LM 48768 LM 20400 2700 9948672 1316736
Supply additional 60 inch diam Pipe 47510
809
810
811
Excavate inlet and outlet drains mitre ditches and roadway ditches
Sand-cement Pitching
Clay slope Protection
m3
m3
m2
477781 m3
276769 m3
NA
110
2300
030
3000
100
525559
636569
-0-
143334
830307
-0shy
Supplied but not installed
mi -blN mN -m~ m ml m min nmlW arm~ nn- a a a a1 al a
TABLE 4 (Continued) Sheet 3 of 4
Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount No Description
812 Supply Nestable Galvanized Corrugated
Metal Pipe 18 inches in diameter 14 USSG
PIPE
END SECTIONS
901 Construct Maintenance Facility Complex
902 Water Pump
903 Contractors Expenses and Profit on Prime Cost Item 902
1001 Road Signs
1002 Guide Posts
1003 Kilometre Posts
Dayworks
TOTAL-SCHEDULE OF QUANTITIES
a
0) CO I CO 2
TAMS Staff Hotel Accommodation
Air Conditioners TCN Houses
CO 3
CO 4
NA (Progress Payment Permanent Material)
Additional TCN Housing
SUB-TOTAL
CO 5 POL Escalation Cost
CO 6 POL Escalation Cost
CO 7 POL Escalation Cost
SUB-TOTAL
LESS OVERPAYMENT
TOTAL POL ESCALATION COST
CO 8 Interim Allowance (Wage)
CO 9 Wage Escalation Cost
SUB-TOTAL
LESS OVERPAYMENT
TOTAL WAGE ESCALATION COST
Measure
LM
Each
Lump Sum
PC Sum
25
Each
Each
Each
As directed
Each
Final Quantities
238 LM
0 each
98
284 each
900 each
182 each
100
100
100
NA
6
100
100
100
100
100
US $
3400
6700
8520
As Billed
650000
As Shown
As Shown
As Shown
As Shown
As Shown
RandPula
900000
1000
1450
1500
130100
US $
809200
-0-
13014800
-0-
-0-
2419680
-0-
-0-
5999421
882317486
376898
3900000
4276898
RandPula
-0shy
-0shy
7308700
255223
63806
284000
1305000
273000
-0shy
310970881
842138
5307
780600
1628045
575601
1815344
77277517
79668462
1661539
78006923
297802
16022556
16320358
125720
16194638
TABLE 4 (Continued)
Item No Description
Unit of Measure
Total Revised Final Quantities
Contract Unit Price US $ RandPula
Sheet 4 of 4
Final Revised Contract Amount US $ RandPula
CO 10
CO 11
CO 12
Road Reserve cleared way Chobe River By-pass (included under items 302 303 and 304)
Importation Additional Sheeps foot roller (included under item 101)
Minor realignment of roadway at Nata
TOTAL CONSTRUCTION COST
100
100
100
886594384 406800487
ishy
I I I I I I I I
APPENDIX A
I CONSTRUCTION EQUIPMENT
I I I I U I I I I I
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT
I Descqription
2 Chevrolet Impala Sedan
5 jeep-Wagoner
7 jeep-Wagoner
1 Chevrolet Vega
23 Chevrolet Pickup
19 Mack Tractor (T675-8W)
2 Chevrolet Flat Bed
5 Mack-Platform Stake (T426-3500)
1 Mack-2000 Gal Fuel (T426-3500)
4 Mack Dump Truck 10 cy
2 Chevrolet Dump Truck 5 cy
1 Mack-Birmingham Tandum Lowboy Trailer
2 Mack-Gindy 25 Ton Tandum Semi Trailer
8 Heil- P3S 303 cy Dump Trailer
I 7 Fruehauf-TEO-F3-R 10000 Gal Tanker
5 Fruehauf-TEO-F2-R 6500 Gal Tanker
5 Fruehauf-Tandum Axle Dolly
2 Barko 14000 Telescopic Crane
6 Cobey 1062 Wagon Trailer
1 Cedarapids 443 Commander Crusher
1 Peerless Portable Base Stabilisation Plant
2 Atlantic International Water Treatment Plant
6 Caterpillar 631-B TractorS631-B Scraper
7 Caterpillar D8-H Dozer
2 4
Caterpillar D9- Dozer Caterpillar D6-C Dozer
2 Caterpillar 12-F Grader
5 Caterpillar 14-E Grader
U A-i
1
I
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (Cont)
Quantity
4
1
4
11Raygo
1
S1 2
ICaterpillar-200KW 3
1
1
1
1
1
3
2 2
2
I
1
2
2
I
1 2
8
1
j 8
1 4
9
1
Description
Caterpillar 966 Loader
Trojan 4000 Loader
Raygo 400A Compactor Vibrator
410A Compactor Vibrator
Vibro Plus Vibrating Sheepsfoot Roller
Bros 10000 Compactor
Bros 6000 Compactor
Generator Caterpillar - 125KW Generator
Little Reddevil Generator
Kholer 3KW Generator
Kholer 2KW Generator
Detroit Diesel Generator (2D-32)
Kholer Generator (5CKM61)
Hobart GR-3 03 Welders w trolley
Worthington 365 Compressor Worthington 160 Compressor
Kellypower Tamper
John Deere 2700 Disc Harrow10 Cut
ohn Deere 1630 Disc Harrow 7 Cut
Worthington WS-55 Rock Drill
Alemite Portable Service Station
Graco Lube Ranger
Worthington Wagon Drill
Layne Bowler Deep Well Pump
Layne Bowler Pump only
4 Centrifugal Pump
2 Centrifugal Pump
Columbian Steel Water Tanks 20000 US Gal
A-2
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (contd)
Quanti
1I Description
Caterpillar Parallel Shank Ripper
2 Fleco Blade Rake
4 Chainsaw
3 Gardner-Denver Compressor
5 Aerotron Radio Transmitters $1203
7 Aerotron Radio Receivers $2 10
16 SSB Radio Transceivers $1340
8 Auxilliary Radio Transceivers $1340
2 Cevy 4 x 4 Pickup Truck 8 Chevy 2 x 4 Pickup Truck
1 L B Smith Cone Crusher
2 Ford 4 x 4 (1164-14C Tractor)
2 Bros Sheepsfoot Roller
1 Hyster Towed Vibratory Compactor
During 1975 and 1976 the Contractor added the following listed equipment
1 Caterpillar No 14 Motor Grader
1 Caterpillar No 966 Loader
1 Trojan No 4000 Loader
1 Cone Crushing Plant 3 ft Standard Fine Bowl with 4 Deck Screens
4 Conveyor Units
A-3
I 1 I I I U I I
APPENDIX B
I I SOILS AND MATERIALS
I I 1 I I I I I 1
APPENDIX B
SOILS AND MATERIALS
(a) General
The road pavement is composed basically of two layers the surface
course and base course overlaying a compacted subgrade or embankment
The sources and volumes of the surface course and base course materials
are indicated in the Materials Utilization Diagrams included as Figures B-i
through B-4
(b) Subgrade
The subgrade soil consists primarily of aeolian fine sand except
for approximately 36 kilometers of the road for which the subgrade is a pan material consisting of clay In the pan areas special 1 Om thick
embankments were constructed with plasticity and fineness control of material
The subgrade and embankment soils were compacted to a minimum of 90
of modified AASHTO compaction The measured mean relative compaction
obtained immediately after compaction of the subgrade was 935 of the modified AASHTO maximum density
(c) Base Course
The majority of the base course materials are derived from aeolian deposits ie fine sand with a trace to some silty clay The
remaining base bourse approximately 15 of the total was obtained from pits having a large component of gravel The 15cm thick base
course is bank run or blended material for which the amounts of fines
and plasticity were controlled The base course materials were obtained from 123 base borrow pits and compacted to a minimum 95 of modified AASHTO density The measured mean relative compaction
directly after construction was 96 of the modified AASHTO maximum
density
(d) Surface Course
The 15cm thick surface course is well graded sandy gravel with
some silty clay fraction The materials for the road segment from
Kilometer 0+000 to Kilometer 173+000 are derived from calcrete deposits
while the materials for the remaining portion are derived from weathered
3-1
bedrock The surface course has controlled gradation plasticity and
durability to obtain sufficient strength to reduce ravelling to a minimum
particularly during the dry season and to resist the wear of traffic
Surface course materials have been obtained by screening crushing
and blending materials from 9 borrow areas and were compacted to a
minimum of 98 of modified AASUTO maximum dry density The comshy
posite properties for each borrow pit are indicated in the Average
Gradation Ourvesincluded as Figures B-5 through B-13 Directly
after construction of the surface course the measured mean relative
compaction was 100 of the modified AASHTO maximum density
B-2
N A TA K A ZUN GU LA RO0A D 70 033 90 CC
00 00 0 0 0+I 03- 30L K
0 I I
M 3 100 0002L [2
_
MATERIALS UTILIZATION DIAGRAM Fiure -I
NATA - KAZUNGULA ROAD
+--- 121
y T
MATERIALS UTILIZATION DIAGRAM Fgure R-Z
NAT A - KAZ UN GULA ROAD
07 2 230K300 220 220 232 252
I 3 3 2
MATERIALS UTILIZATION DIAGRAM Figure 2-3
itLT-m
CHOBE RIVER BY-PASS ROAD 02__ Q___ 0 60 40 - 0 50 0 i
-F-CEL
-Tl J-II II
MATERIALS UTILIZATION DIAGRAM Figure B-4
3 SIEVE ANALYSIS SMI~ia VIII
IY UN In~ VI STAISRS SIEVE NUMBfh SUE9 - usuLguNuus O-- aoIiUl- I1
11I a to to 0 i oIIIa lf I
II
SN Cu ye B
II N
o
i B _ ___~ N II 1 l s - Curi e At-
I 2 I a 6 4 2 i5 4 3 2 a -
GRAIN I IZE MILTERS
SILT AND CLAY SOILS GRAVEL SAND
I NUMBE1RSAMPLE DEPTH LL KIE IPTIONIELEV P1 ECIT
A Composit 38 19 CrusherAverage Runof 192 samples
B Composit 33 17 Surface Course Blend asAverage of 236 samples placed
MDD 1960 kgm Los Angeles Abrasion = 42 Average Blend Added 15=
REPUBLIC OF BOTSWANA TI PPETTS-ASSETT-NcCAIThY-STRATTOU MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY BOTSWANA-ZAMBIA GRAIN SIZE DISTRIBUTION BY DmArTE Q76HIGHWAY j PIT 2A DOi FIGURE B-5
E ANLYSISSIEVE NALYSIS NI
OPEING - In jS PhIMS-SEVE iNRh3EN son - MILLIMETER
V11 6plusmn SSIEVE
6 i S 0-4 0 10 miUS) 3055 3 001mesa a
9 I I I - -
Crye B
S bull
1TCrii INN20 1 e A- NI deg I FIK 46591 2 a045 4 2 1115 5 2 6
GRIISZ IN MILLIMETERS
COACE iE NtIUM FI SILT AD CLAY SOILSGRAVEL SAND
5r IBSAMPLE DEPTH ELEV LLP1
A Composite 28 10 Crusher Run Average of 229 samples
B Composite 28 11 Surface Course Blend as Placed Average of 58 samples
2050 kgm3 Averaoe Blend Added shy
TIPPETTS-ASETT-NCCARTIY-STATTONREPUBLIC OF BOTSWANA NEW YORK NY
MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS
BRAIN SIZE DISTRIBUTION BY NCZ jAATE9 876BOTSWANA-ZAMBIA
HIGHWAY PIT 14 amp 14A OWN FIGURE B-6
i
S ANALYSIS 01 ANALYSIS
SIEVE - n -IIII- SIZ-MII- - IN i
It a s 1
Ue a -- e B
- 1 -I-[_I - I I I
6l51 10 8 $514 1 O is 05I I 21 8GANSZNILMTR OA RE Filo 9OA-1i 1DI UM F log S ILT AND CLAY SO ILS
GRAVEL nSAND
E--l I UNEASMPLEDEPlTH ELEV LL P1 KWKIPTION
A Composite 36 19 Crusher Run
Average of 116 Samples
B Composite 36 15 Surface Course Blend Average of 138 samples
H GHWA E SA 18 SILT ANDURCLA-SIL
3kgm Los Angeles Abrasion 28
Av agau Pnd AAd = 907 ITI UETT$-ABBTT-NcentcentARTNY-STRATTON
NEW YORK NY
REPUBLIC OF BOTSWANA
MINISTRY OF WORKS amp COM24UNICATIONSIT NINEERS1
I I MGIELI7 I 1 8AIIGIWAE
I
4
SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU
V 1 Oe 001l
- -r--I-I -- I
S E- -IN S
KI zz7llfl$zIIIti z I
low560
20
2
IGRAIN SIZE IN MILLIMETERS
COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS
GRAVEL SAND
SAMP DEPTH ELEV L P1 0NBERIIPTI
A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples
B Composit( 28 13 Surface Course Blend as Placed
Average of 85 samples
Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA
REPUBLIC OF BOTSWANA TI EfTTS-AIETT-NCARTY-STRATTOi ITTqTPI yen O WOVQ A n rn WTraTTn~lz ENGINEERS NEW YOlK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8
-D IUR IB
II SIEVE ANALYIIS 1411 I LYIlMll
[urn $11min - I I ITUSE IVV I - mampINimums1 -l0 n 001
a1 i 4 is s 0 aL w I 2 0665S a a 4 i 0i
-7sl
96---
I RI IE IN M IEER
CfliEI FIN g o au SIT SILFIN M40 5C o432 14593 ry B6
ver 7 samples
NUMBE NERPI
Ay I GRAIN SIZE IN MILLIMETR
5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND
A Q A- Aii dd d~A
IMUBEIRIIIIPIi
3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables
B Composit 26 13 Surface Course BlendU as Placed
Average of 79 samples
AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =
REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9
SIEVE ANALYSIS IMmv na awLYoia
SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I
I- 01 001
e---__
Ir1 -NIP_]
20
OA
$05 9 2
E
I
86543
I
7tN
2 1 65
_OAlEED t
5 2
FN
I
GRAIN SIZE IN MILLIMETERS
1 111I
NU BE GRAVEL
COARSE
I
MEDIUM
I SAND
FSILT AND CLAY SOILS
SAMPLE4 DEP EEY 1 SCBI1PTIORI
A
B
Composite
Composite
38
26
17
13
Crusher Run Basaltic Aggregate
Average of 176 samples
Surface Course Blend -s Placed Average of 58 samples
Average MDD = 2135 kgm Los Angeles Abrasion = 38
Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY
WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971
3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10
SIEVE ANIALYSIS lNVINI1111 ANALYSIS
I EV OPE IN - INI8 TOSIIEENN1-MLII
I
I - - i ii 0
I GRI SIZEto N OILS 1
I ANDLI IS
G VELIZE I
IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL
-APL ESN
DEPTH ELEY LL PI DESCRIPTIONNUSMBE
3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples
B Composite 26 13 Surface Course Blend as Placed Average of 58 samples
Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34
Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY
BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11
___ I
SIEVE ANALYSIS W11 ANKEm SIS
SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS
01 001
sodego
i i
U Ae
6 559 2 a65 3 2 1 6532 S
II GRAIN SIZE INMILLIMETERS
=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL
GRAVEL SN
I SAMPE DEPTH ELEV LL P)S DESCRIPTION
A omposite 28 10 Crusher Run
SAverage of 72 samples
B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples
Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20
REPUBLICUINISTRY 0OF OF
BOTSWANA WORKS amp COMMUNIGTIONS
TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12
I
SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM
-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U
I _
I1li
Ia _ Cu ve
N IC A11
IQI II
1 IG S IIIMETE
I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND
SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION
A Composite 34 15 Crusher Run Average of 74 samples
B Composite 29 12 Surface Course Blend as Placed
Average of 42 samples
MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15
REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA
ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N
NEW sy cKA
YORK NYT E-2 5 1 7 7
HIGHWAY PIT 32A Mwe FIGURE B-13
I I I I I I I I
APPENDIX C
I WATER WELL LOCATIONS
I I I I I I I I I
APPENDIX C WATER WELL LOCATIONS
WELL NO 3
Location Km 171 Lt of centerline 200 meters
Drill - 6 x 392
Ream - 8 x 92
Case - 6 x 84
Test - 24 Hours - 276
Pump 6000 G P H
Total depth - 392
Pumped at 150
24 Hr Drawdown - 3
Water Good
WELL NO 4
Location Km 175 - Lt of centerline 100 meters
Drill - 6 x 380
Ream - 8 x 82
Case - 7 x 82
Test - 276
Pump 1800 G P H
Total depth - 380
Pumped at 200
Drawdown 24 Hr - 100
Water Good
WELL NO 5 (Govt No 2436
Location Km 178 - Lt of centerline 115 meters
Test -276
Pump - 1400 G P H
Total depth - 160
Pumped at 140
24 Hr Drawdown - 60
Water Good C-1
WELL NO 6
Location Km 183 - Lt of centerline 60 meters
Drill - 6 x 436
Ream - 8 x 86
Case - 7 x 86
Test - 276
Pump - 500 G P H
Total depth - 436
Pumped at 250
24 Hr Drawdown - 150
Water Good
WELL NO 7 - (Govt No 2435)
Location Km 189 - Rt of centerline 100 meters
Clean amp Test
Pump - 6000 G P H
Pumped at 140
24 Hr Drawdown - 10
Water Good
WELL NO 14
Location Km 252 - Lt of centerline 100 meters
Drill - 6 x 250
Ream - 8 x 53
Case - 6 x 53
Test - 276
Pump - 6000 G P H
Total depth - 250
Pumped at 150
24 Hr Drawdown - 6
Water Good
C-2
WELL AT KM 256 MAINTENANCE FACILITY NO 3
Location Km 256 - Lt of centerline 200 meters
Depth - 100 feet
Water Rest Level - 42 feet
Depth Pump Set - 70 feet
24 Hr Test - 1800 G P H
WELL NO 15
Location Km 245 - Rt of centerline 40 meters
Drill - 6 x 260
Ream - 8 x 54
Case - 54
Test -276
Pump - 1500 G P H
Total depth - 260
Pumped at 200
24 Hr Drawdown - 140
Water Good
WELL NO 16 Location Km 236 -Rt of centerline 30 meters
Drill - 6 x 250
Ream - 8 x 22
Case - 6 x 22
Test - 276
Pump -6000 G P H
Total depth - 288
Pumped at 150
24 Hr Drawdown - 10
Water Good
C-3
WELL NO 17
Location Km 224 - Rt of centerline 30 meters
Drill - 10 x 89
Case - 8 x 85
Drill- 8x 43
Drill - 6 x 38
Case -6 x 132
Test - 276
Pump -2000 G P H
Total Depth - 170
Pumped at 100
24 Hr Drawdown - 11
Water Good
WELL NO 18
Location Km 217 - Lt of centerline 200 meters
Drill -i0 x 70
Case - 7 x 70
Drill - 7 x 52
Drill - 6 x 88
Case - 6 x 122
Test - 276
Pump 2400 G P H
Total depth - 210
Pumped at 200
24 Hr Drawdown - 140
Water Good
C-4
WELL NO 19
Location Km 213 - Lt of centerline 100 meters
Drill - 10 x 44
Case - 8 x 40
Drill - 8 x 76
Drill 6 x 130
Case - 6 x 120
Test - 276
Pump - 6000 G P H
Total depth - 210
Pumped at 60
24 Hr Drawdown - 10
Water Good
WELL NO 20
Location Km 143 - Rt of centerline 100 meters
Drill - 10 x 240
Case - 7 x 220
Drill -6 x 378
Case - 6 x 240
Case - 5 x 240
Test - 276
Pump -1500 G P H
Total depth - 618
Pumped at 460
24 Hr Drawdown - 105
Water slightly salty to taste but drinkable
C-5
WELL NO 23
Location Km 139 - Lt of centerline 100 meters
Drill - 12 x 290
Place amp Extract Case - 10 x 290
Drill - 8 x 30
Drill - 6 x 40
Case - 8 x 290
Case - 6 x 320
Test - 276
Pump - 1200 G P H
Total depth - 360
Pumped at 330
24 Hr Drawdown - 120
Water salty
WELL NO 24
Location Km 135 - Lt of centerline 500 meters
Drill - 12 x 270
Drill - 10 x 10
Case - 10 x 270
Drill -8 x 30
Case - 8 x 290
Case -6 x 310
Case - 5 x 320
Test -276
Pump -4000 +G P H
Total depth - 320
Pumped at 270
24 Hr Drawdown - 2
Water Salty
C-6
I
5
WELL KM 205 MAINTENANCE FACILITY NO 2
Location Km 105 - Lt of centerline 40 meters
Depth - 302 feet
~ Water Rest Level - 82 feet
Depth Pump Set - 150 feet
48 Hr Test - 3000 + G P H
WELL NO 26
Location Km 82 - Lt of centerline 100 meters
Drill - 12 x 145
5 -8 x145
Drill - 8 x 23
-Case
I Drill - 7 x 10
Case - 7 x 168
I Case - 6 x178
Test - 276
Pump - 1200 G P H
Total depth - 306
I Pumped at 140
24 Hr Drawdown - 35
I Water Good
C
I 0-7
WELL NO 27
Location Km 77 - Lt of centerline 100 meters
Drill - 12 x 174
Install amp Extract Case - 10 x 174
Case - 8 x 174
Drill - 9 x 68
Drill - 8 x 64
Case - 7 x 242
Case - 6 x 306
Test - 276
Pump - 4000 + G P H
Total Depth - 306
Pumpe at 240
24 Hr Drawdown - 0
Water Good
WELL NO 28- (Govt No 2465)
Location Km 63 - Rt of centerline 100 meters
Clean amp Extract Case - 300
Ream - 10 x 98
Ream - 8x 27
Ream - 6 x 12
Case - 8 x 98
Case - 6 x 125
Test - 276
Pump - 1000 + G P H
Total depth - 137
Pumped at 130
24 Hr Drawdown - 33
Water Good
C-8
WELL NO 30
Location Km 47 - Rt of centerline 400 meters
Drill - 12 x 132
Case - 10 x 89
Install amp Extract Case - 12 x 43
Drill - 10 x 117
Case - 7 x 242
Drill - 6 x 183
Install amp Extract Case - 6 x 408
Test - 276
Pump - 1000 G P H
Total depth - 408
Pumped at 160
24 Hr Drawdown - 77
Water Salty
WELL NO 31
- Lt of centerline 200 metersLocation Km 44
Drill - 12 x 110
Case - 10 x 100
Drill - 10 x 142
Case 8 x 142
Drill - 8 x 250
Case 7 x 392
Drill - 6 x 78
Test - 276
Pump - 3000 G P H
Total depth - 502
Pumped at 160
24 Hr Drawdown - 44
Water Salty
C-9
WELL NO 32
Location Km 42 - Lt of centerline 100 meters
Drill - 12 x 108
Case - 10 x 108
Drill - 10 x 212
Drill - 8 x 120
Case - 6 x 340
Case - 8 x 182
Test - 276
Pump - 3000 + G P H
Total depth - 448
Pumped at 160
24 Hr Drawdown - 20
Water Salty
WELL NO 34
Location Km 35 - Lt of centerline 200 meters
Drill - 12 x 230
Install amp Extract Case - 10 x 230
Drill - 8 x 30
Case -6 x 260
Drill - 6 x 160
Case -5 x 324
Case - 8 x 20
Test - 276
Pump -1000 + G P H
Total depth - 420
Pumped at 150
24 Hr Drawdown - 100
Water Salty
C-10
WELL NO 36
Location Km 7 N E along old track from Km 63
Drill - 12 x 180
Case - 10 x 180
Drill - 10 x 231
Case - 8 x 211
Drill- 8x 254
Case - 6 x 245
Test -276
Pump -4000 + G P H
Total depth - 265
Pumped at 180
24 Hr Drawdown - 0
Water Good
C-11
I 3 I 1 I I I I B j APPENDDC D
SYNOPSIS 0 KEY CORRESPONDENCE
3 DURING CONSTRUCTION
I pound I I I 1 I I
On September 1 1973 the Contractor confirmed the
estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts
On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project
On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be
obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated
On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine
On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation
On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension
On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension
On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval
On October 15 1973 the Engineer returned the construction progress schedule for correction
On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim
D-I
On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor
On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project
On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25
On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter
On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents
On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract
On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised
On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading
On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule
On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request
On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period
D-2
On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report
On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material
On August 19 1974 the Contractor submitted an updated construction progress schedule for approval
On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases
On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor
On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor
On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project
On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course
On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country
On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course
On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions
On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule
On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress
D-3
On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract
On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana
On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor
On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion
On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations
On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases
On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season
On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees
On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections
On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project
On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course
On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project
On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract
D-4
October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request
On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor
On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620
On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project
On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y
completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense
On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted
On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project
On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim
On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic
On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor
On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976
D-5
On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time
On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares
On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material
On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500
On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor
On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula
On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana
OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected
On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road
On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road
Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10
On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued
On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced
On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091
On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091
Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued
D-6
I I IUUU U U UU I U
E PROJECT PHOTOGRAPHS
I IIIU U I
I Crushing Plants Surface Course
Pit 2A
Pug Mill Blending Surface Course
Pit 25A
II Surface Course
Pit 25A
UURYPTOERTOSE Pug Mil Blending
Road Reserve Bush Clearing
Km 242
U
Embankment Construction Km 287
IN
Road Construction Water Supply
Km 189
ROADWAY UNDER CONSTRUTION
II
E-2
Stockpiling Material Base Course
Special Embankment Construction Km 232
Watering of Embankment Km 257
ROADWAY UNDER CONSTRUCTION E-3
Culvert Assembly
Twin Culvert with Sand-Cement Pitching
Multiple Culverts with Sand-Cement Pitching
CULVERT INSTALLATIONS E- 4
AT Km 25
AT Km 194
Emergency Landing Strip Kra 2605
FINISHED ROADWAY E- 5
AT Km 286
AT Chobe By-Pass Junction Km 297
I Chobe By-Pass Road Near Ngoma Bridge
E-6FINISHED ROADWAY
B FUNDING
Funds for construction and construction supervision of the Project
were provided by loan agreements between the Government of the Republic of
Botswana and the United States of America acting through the Agency for
International Development (AID) The funds allocated were in the amount
of US $16600000 and were derived from the following sources
-U S $12600000 AID Loan No 690-H-001
-U S $ 4000000 First Amendment No 690-H-001A
C CONTRACTUAL ARRANGEMENTS
A contract for construction of the Botswana-Zambia Highway Project
was signed on Tune 26 1973 between the Government of the Republic of Botswana
and Grove International Corporation and Grove Shepherd Wilson and Kruge Inc
a joint venture for an estimated total cost of construction of US $897784200
and Rand 316082500 The contract provided for completion of the project
by April 25 1976 a 975 day period from Notice to Proceed given on August 22
1973
There were two amendments to the contract both dealing with the condishy
tions and limits for Off-Shelf purchases
A contract for supervision of construction was entered into by the Government
of the Republic of Botswana and Tippetts -Abbett-McCarthy-Stratton (TAMS) in
the form of a supplement to the basic agreement for design of the project The
supplemental agreement was dated July 2 1973 Two amendments the first
dated September 29 1976 and the second dated July 26 1977 extended the
the time for completion and modified the original estimate for cost of inspection
services
D MODIFICATIONS OF CONTR4tCT
During the course of construction twelve Change Orders approved
and signed by the Government were issued These orders are briefly described
in Table 1
-2shy
5307
TABLE 1 CHANGE ORDERS
Change Order Cost No Purpose US$ RandPula
1 Hotel rentals for Engineers staff while awaiting completion of housing units 842138
2 Additional air-conditioning units for staff housing 376898
3 Arrangements for monthly advance progress payments for permanent materials on site shy
4 Addition to the number of TAMS staff housing units 3900000 780600
5 For escalation of POL costs between 11 November 1973 and 11 February 1974 575601
6 For additional escalation of POL costs between 11 February 1974 and 14 May 1974 1815344
7 For additional escalation of POL costs between 14 May 1974 and 19 July 1974 77277517
LESS OVERPAYMENT (-)1661539
8 Interim allowance by GOB authorization to all employees to maximum rate of R500 per month between April 1973 and March 1974 297802
9 Escalation of minimum wage rates for field personnel 16022556
LESS OVERPAYMENT (-)125720
10 Reduction InRoad Reserve clearing on Costs included in Chobe By-Pass Road amounts in pay
items 302 303 and 304
11 For increase in mobilization costs to Costs included in cover importation of additional compaction amounts in equipment pay item 101
12 For minor realignment of roadway at Costs included in Nata contract pay items
TOTALS 4276898 95829606
-3shy
II STAFFING Excluding the mobilization and demobilization periods the major conshy
struction efforts took place during the calendar years 1974 1975 and 1976
A summary of the project staffing is presented in Table 2
TABLE 2
AverageMaximum Staffing Levels
Contractors Staff Engineers Staff
YearSource US Botswana TCN Code 941 US Botswana TCN
1974 17 232 2 22 4 11 9 1975 18 302 3 43 4 12 9
1976 15 290 3 40 4 13 7
Maximum 20 359 5 49 4 14 9
A paving specialist visited the Project in December 1973 and une 1974
in connection with proposals for upgrading the Project and again in March 1975
in connection with selection of material for the surface course
A partner from the Consultants home office made periodic visits to the
Project sites
III TRAINING
The Contractor trained Botswana Staff as drivers equipment operators
and oilers surveyors soils technicians mechanics helpers stewards and
maintenance workers
The Engineer trained Botswana Staff as soils technicians surveyors
drivers draftsmen and office clerical workers
IV CONSTRUCTION EQUIPMENT
In compliance with a requirement of the Contract Documents the Conshy
tractor presented a schedule of major plant and equipment to be used on the
Project Some adjustments were made to the listing as the job progressed
-4shy
Advances for the purchase of new items (materials construction plant
equipment tools spare parts maintenance supplies and buildings furniture
and equipment for the Contractors and Engineers camps) totaling U S
$124443700 and local currency Rand 225000 were made available to the
Contractor as provided for by the Contract Documents Reimbursement of
these advances were made in January1974 in accordance with the Contract
requirements
The major items of construction and shop equipment imported by the
Contractor for use on the project are listed in Appendix A
V MATERIALS UTILIZED
A SOILS
The formation consists of two layers the surface and base courses
placed on a compacted subgrade or embankment Base course materials were
obtained from 123 borrow pits along the roadway Surface course materials
which required processing were obtained from 9 borrow areas Appendix B
contains the Material Utilization Diagrams which show the sources of these
borrow materials and their utilization along the road Also included in Appendix
B are the Average Gradation Curves of the processed surface course materials
B WATER
Water for construction was obtained from 24 water wells drilled by the
Contractor Appendix C contains information on locations depth and yields
of the wells
VI PROTECT HISTORY
A GENERAL The engineers inspectors and materials technicians employed by TAMS
systematically inspected construction operations and sampled and tested mashy
terials being incorporated in the work to ensure compliance with contract reshy
quirements Each month a determination was made of the work accomplished
-5shy
and eligible for payments and pay quantities for the Contractors monthly
progress estimates were certified
The Engineers survey parties verified reference points established
by the Contractors personnel for vertical and horizontal control points estabshy
lished along the preliminary base line and verified limits of bush clearing
flagged by the Contractor After the final line was staked detailed cross shy
sections were taken for computation of pay quantities Check measurements
were made periodically to verify the construction performed by the Contractor
As sections of the Project were completed final measurements were taken and
as-built plans prepared
Periodic progress reports and charts were prepared for the Government
and AID throughout the construction phase
After substantial completion of the works in January1977 a final inshy
spection of the project was made On January 19 1977 a Certificate of
Completion was issued by the Engineer As required by the Contract the
six-month maintenance period commenced
A synopsis of the more important correspondence initiated or received
by the Consultant in connection with administration of the Contract is included
in Appendix D
B SEQUENCE OF EVENTS
During late July and early August1973 the Contractor began to mobilize
personnel at Pandamatenga preparatory to commencing construction of the main
camp facilities
A sub-contract for construction of the engineers facilities atd some
items of the Contractors camp was negotiated between Grove International
and Botzam Services of Livingstone Zambia During September 1973 the subshy
contractor mobilized men equipment and material at Pandamatenga and comshy
menced construction on main camp housing units
On September 20 1973 the Contractor having been denied access
through the Botswana-Rhodesia Border at Pandamatenga for mobilizing equipment
material and supplies decided to shift the main camp site to the vicinity of
Kazungula The camp site was established at Kilometer 3+400 on the Chobe
River By-Pass road approximately 8 Kilometers east of the village of Kasane
3 -6shy
During late October construction of housing shops offices wareshy
houses and ancillary facilities commenced at the relocated main camp site
The camp facilities were substantially completed by the end of March 1974
Temporary satellite camps were later established at Pandamatenga at Kilometer
105 and at Kilometer 63 on the Nata-Kazungula segment of the project
Mobilization of construction equipment personnel material and supplies
began in early October 1973 and continued through April 1974
During the remainder of 1973 the construction efforts were concentrated
on construction of the main camp site A small amount of clearing grubbing
and earthwork was accomplished on the Chobe River By-Pass Road and on the
northern end of the Nata-Kazungula road
1 Principal Construction Accomplishments During 1974
Clearing and Grubbing - 5366 hectares completed between
Kilometer 297 and Kilometer 169 on the Nata-Kazungula segment
of the project
- Earthworks - excavation and borrow quantities came to a total
of approximately 506500m with the major portion of this work
performed between Kilometer 297 and Kilometer 196 on the Nata-
Kazungula segment of the project
- Pipe culverts - installed 59 pipes ranging in size from 18 to 60
diameter for a total of 1129 linealmeters between Kilometer 297
and Kilometer 196 on the Nata-Kazungula segment and from
Kilometer 0+000 to Kilometer 3+500 on the Pandamatenga Access
Road
Base Course - approximately 113600m placed between Kilometer
297 and Kilometer 197 on the Nata-Kazungula segment and from
Kilometer 0+000 to Kilometer 2+350 on the Pandamatenga Access
Road
Surface Course - approximately 19000m was placed between
Kilometer 292 and Kilometer 273+500 on the Nata-Kazungula segment
5-7shyI
2 Principal Construction Accomplishments During 1975
- Clearing and Grubbing - 634 hectares completed between
Kilometer 169 and Kilometer 2+000 on the Nata-Kazungula
segment between Kilometer 0+000 and Kilometer 14+000
on the Chobe River By-Pass segment and from Kilometer 2+350
to Kilometer 5+275 on the Pandamatenga Access Road
- Earthworks - excavation and borrow quantities came to a total
of 379145m3 with the major share of this work performed
between Kilometer 196 and Kilometer 49+000 on the Nata-
Kazungula segment and on the Pandamatenga Access Road
- Pipe Culverts - 69 pipes were installed ranging in size from
18 to 60 in diameter for a total of 1308 lineal meters
between Kilometer 200 and Kilometer 65 on the Nata-Kazungula
segment and from Kilometer 0+000 to Kilometer 5+200 on the
Pandamatenga Access Road
Base Course - approximately 219000m was placed between
Kilometer 197 and Kilometer 57 on the Nata-Kazungula segment
and on the entire 52 kilometers of the Pandamatenga Access
Road
Surface Course - approximately 177 000m of surface material
placed between Kilometer 273 and Kilometer 130 on the Nata-
Kazungula segment
3 Principal Construction Accomplishments During 1976
- Clearing and Grubbing - completed 2188 hectares between
Kilometer 2+000 and Kildmeter 0+000 and between Kilometer
297+300 and Kilometer299+600 on the Nata-Kazungula segment
and between Kilometer 14+000 and Kilometer 65+000 on the
Chobe River By-Pass segment which completed this item of
work
- Earthworks - excavation and borrow quantities came to a total
of 235092m which completed this item of work
-8shy
Pipe Culverts - 36 pipes were installed ranging in size from
18 to 48 diameter for a total of 973 lineal meters The
major share of this work was performed on the Chobe River
By-Pass segment
Base Course- 206120m3 was placed on the Nata-Kazungula
road between Kilometer 57+600 and Kilometer 0+000 and between
Kilometer 297+300 and Kilometer 299+588 and on the Chobe River
By-Pass road between Kilometer 0+000 and Kilometer 65+048
Surface Course - 260878m placed between Kilometer 130+000
and Kilometer 0+000 on the Nata-Kazungula road and between
Kilometer 0+000 and Kilometer 65+048 on the Chobe River By-Pass
Road
4 Principal Construction Accomplishments During 1977
The Contractor continued to work on final clean-up and corrective
work in accordance with the punch list provided by the Engineer On January
19 1977 the Completion Certificate was issued with a list of outstanding
deficiencies attached These were rectified by the Contractor during the
early part of the six-rnnth maintenance period The Contractor in compliance
with the Engineers instructions installed 10 additional 18 diameter CMP
culverts on the Nata-Kazungula road between Kilometer 236 and Kilometer 238
Two additional pipes were installed at Kilometer 6+540 on the Chobe River
By-Pass Road Rock was placed on sand fill slopes and at culvert inlets and
outlets to guard against erosion on numerous sections of the Nata-Kazungula
Road and Chobe River By-Pass Road The Contractor maintained the project
until July 19 1977 when a Certificate of Maintenance was issued
C PROTECT SCHDULING AND DELAYS
On October 5 1973 as required by Clause 12 Part II-Conditions of
Particular Application of the Conditions of Contract - the Contractor submitted
his proposed construction schedule for the project The schedule was returned
to the Contractor on October 16 1973 for modifications It was resubmitted
and finally approved on March 19 1974
-9shy
In October 1974 the Contractor presented a revised construction schedule
It was not approved by the Engineer who informed the Contractor that the
actual rate of progress was far below that projected by the schedule and reshy
quested an explanation as to what steps were contemplated to bring progress
on the project up to schedule
On November 6 1974 the Contractor again presented a revised conshy
struction schedule reflecting a completion date beyond the contract period for
completing the Project The Contractor made reference to conditions which
had allegedly caused delays to progress on the Project and stated that claims
would be presented requesting time extension for completion of the Project
The revised schedule was not approved pending presentation by the Contractor
of all supporting details
By the end of December 1974 the Contractor had completed 29 percent
of the work then specified in the Contract as modified by ten change orders
This compared with 55 percent scheduled to be completed according to the
approved progress schedule
On February 27 1975 the Engineer notified the Contractor that progress
was continuing to fall further behind the approved construction schedule and
requested the Contractor to submit in writing his plans for bringing progress
up to schedule in compliance with pertinent provisions of the Contract On Tuly
24 1975 the Contractor again presented a revised construction schedule reflectshy
ing a completion date of August 31 1976 This schedule was accepted by
the Engineer in September 1975 with the provision that acceptance of the
schedule should in no way be construed as an approval for extension of time
for completion of the project
By the end of 1975 the Contractor had completed 63 percent of the work specified in the contract as compared with 73 percent projected in the revised
construction schedule
On March 11 1976 the Contractor presented the 6th revision of the
construction schedule reflecting a completion date of December 31 1976
This schedule is included herein as Figure 2 The schedule was accepted by
the Engineer on March 24 1976 with the provision that acceptance of this
schedule should in no manner be construed as an approval of extension of time
for completing the project
-0shy
LEGEND CONSTRUCTION PROGRESS CHART BOTSWANA-ZAMBIA HIGHWAY
WORK ELEMENT lt I
MOBILIZATION 7 T z ltgt 7gtlt74gtlaquo 7
GENERAL gt gt lt lt+ $ lt2740gt77
SURVEYS
AND SITE CLEARING
PREPARESUGRADE lt gt
7+47
I EARTHWORKS ~kgt1 E ~gt07 gt0gt0 ~laquolt gtgt~lt7laquogt 77gt
BASE COURSE
SURFACE COURSE ~lt 7ltgtlaquoD4
+4 7iA
gt
ltgt7 77 gtlt4lt
P
DRAINAGE I-shy___MAINTENANCEI I _ _ _ _
FACILITIES - -gt 7 7 7 7lt7 ltgttVViV77W7vV~7~
HIGHWAY HARDWARE lt
CHANGE ORDERS AND I
DAY WORKS lt
TOTAL
VII FINANCIAL SUMMARY
As indicated in Section I-B of this report the funds available (from
AID) for the construction of this project were in the amount of U S $16600000
The disbursements of monies for the construction and construction supervision
through May 31 1978 are summarized in Table 3 along with the original esshy
timated amounts for comparison
TABLE 3
Disbursements Through Original Estimated
May 31 1978 Amounts
US $ RandPula US $ RandPula
Construction Costs (Grove International See Table 5) 882317486 310970881 897784200 316082500
Change Orders (From Table 1) 4276898 - 95829606
Supervision of Construction (TAMS) 129796299 - 135468100 -
TOTALS 1016390683 406800487 1033252300 316082500
From original contracts and supplements through May 31 1978
Table 4 presents a summary of final construction costs including
those by Contract Pay Items disbursed to the Contractor (Grove International)
The above listed costs do not include back charges on the loan which
charges are not available to the Engineer
The Contractor has submitted a series of claims requesting extensions
of time and reimbursement for claimed additional costs These claims are
currently under review by the Engineer A supplemental report will be issued
by the Engineer after the Contractors claims have been resolved and will
include any additional costs and time extensions awarded to the Contractor
Assuming an average rate of exchange of 1000 Pula or 1000 Rand
equal to 1350 U S Dollars and neglecting bank charges the approximate
loan balance as of May 31 1978 was U S $940000
-12shy
An average conversion rate of exchange has been used to estimate
the loan balance since the actual rate varied and actual draw-down figures
are not available to the Engineer
At the time of Project commencement the currency of Botswana was
the Rand In August 1976 the Botswana Government changed over from the
Rand to the Pula as the official currency During the course of construction
local currency disbursements have been made to the Contractor in both Rand
and Pula
-13shy
--- =1m =- M Il-- M=M m -
Sheet 1 of 4TABLE 4 - SCHEDULE OF FINAL CONTRACT QUANTITIES
Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount RandPula
No Description Measure Final Quantities US $ RandPula US $
101 Mobilization Lump Sum 10000 57077200 58360600 -0shy
201 Engineers Staff Housing 2-Bedroom House Each 1 3333 1300000 272100 1300000 272100
202 Engineers Staff Housing 3-Bedroom House Each 3 10000 1400000 339300 4200000 1017900
203 Engineers Staff Housing Technicians House Each 4 10000 650000 130100 2600000 520400
204 Engineers Staff Housing Jr Staff Housing Each 16 10000 112500 19600 1800000 313600
205 Moving amp Re-erection of Engineers Staff Housing Each move NOT APPLICABLE
206 Engineers Main Office Lump Sum 10000 1800000 306300
207 Engineers Main Laboratory Lump Sum 10000 2600000 407700
208 Moving amp Re-erection of Engineers Main Office Each Move NOT A P L I CA B L E and Main Laboratory
209 Engineers Forward OfficeLaboratory Each 2 10000 766300 1532600 -0shy
210 Additional Surveying Office Laboratory and Prime Cost 69809 1500000 1047146 -0-Communication Equipment
211 Contractors Expenses and Profit on Percent 69809 25 261787 -0-Prime Cost Item 210
212 Provide and Maintain Vehicles for ihe Engineers Staff Vmonth 304 Vmonth 24000 17100 7296000 5198400
301 Basic Survey and Setting Out km 370590 km 48500 13400 17973600 4965905
302 Clear Heavy Bush Hectare 514075 ha 23200 7500 11926540 3855563
303 Cleat Light Bush Hectare 70053 ha 15500 5000 10858215 3502650
304 Clear Grassy Hectare 1775 ha 12400 4000 2201000 710000
401 Prepare Sand Subgrade for Embankment m2 3335443 m 2 011 006 36689873 20012658
402 Prepare Clay Subgrade for Embankment m2 408450 m 2 023 011 9394350 4492950
501 Construct Standard Embankment i3 865895 m3 117 047 101309715 40697065
3502 Construct Special Embankment m3 254779 m 196 074 49936684 18853646
030 384035 129450503 Excavate Unsuitable Material m3 4315 m3 089
601 Base Course m3 538854 m3 310 120 167044740 64662480
602 Overhaul of Base Course Material m3km 46462 m3kr 028 010 1300936 464620
701 Remove Overburden from Surface Course Borrow Pits m3 260056 m3 060 016 15603360 4160896
702 Surface Course m3 457260 m3 545 210 249206700 96024600
703 Haul of Surface Course Material m3kmn 6572330 m3kr 0102 0034 67037766 22345922
TABLE 4 (Continued) Sheet 2 of 4
Item No Description
Unit of Measure
Total Revised Final Quantities
Contract Unit Price US $ RandPula
Final Revised Contract Amount US $ RandPula
801
802
803
Excavation and Backfill for Cuiverts up to 48 inches in diameter
Excavations for foundations of Culverts 48 inches and over
Backfilling culverts 48 inches and over
m3
m3
m3
558512 m3
94946 m3
322010 m3
480
270
490
330
140
360
2680858
256352
1577849
1843090
132923
1159236
804 Nestable Galvanized Corrugated Metal Pipe 18 inches in diameter 14 USSG
PIPE LM 249963 LM 4380 820 10948379 2049697
END SECTIONS Each 388 each 6660 225 2584080 87300
805 Nestable Galvanized Corrugated Metal Pipe 24 inches in diameter 14 USSG
PIPE LM 28104 LM 5560 1100 1562582 309144
Supply additional 24 inch diam Pipe 114035
END SECTIONS Each 34 each 10200 800 345800 27200
Supply additional End Sections 30600
806 Nestable Galvanized Corrugated Metal Pipe 36 inches in diameter 12 USSG
PIPE LM 19506 LM 10500 1600 2048130 312096
END SECTIONS Each 28 each 27600 2100 772800 58800
807 Nestable Galvanized Corrugated Metal Pipe 48 inches in diameter 12 USSG
PIPE LM 11522 each 13500 2200 1555470 253484
Supply additional 48 inch diam Pipe 10480
END SECTIONS Each 10 each 76200 4300 762000 43000
808 Nestable Galvanized Corrugated Metal Pipe 60 inches in diameter 10 USSG
PIPE LM 48768 LM 20400 2700 9948672 1316736
Supply additional 60 inch diam Pipe 47510
809
810
811
Excavate inlet and outlet drains mitre ditches and roadway ditches
Sand-cement Pitching
Clay slope Protection
m3
m3
m2
477781 m3
276769 m3
NA
110
2300
030
3000
100
525559
636569
-0-
143334
830307
-0shy
Supplied but not installed
mi -blN mN -m~ m ml m min nmlW arm~ nn- a a a a1 al a
TABLE 4 (Continued) Sheet 3 of 4
Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount No Description
812 Supply Nestable Galvanized Corrugated
Metal Pipe 18 inches in diameter 14 USSG
PIPE
END SECTIONS
901 Construct Maintenance Facility Complex
902 Water Pump
903 Contractors Expenses and Profit on Prime Cost Item 902
1001 Road Signs
1002 Guide Posts
1003 Kilometre Posts
Dayworks
TOTAL-SCHEDULE OF QUANTITIES
a
0) CO I CO 2
TAMS Staff Hotel Accommodation
Air Conditioners TCN Houses
CO 3
CO 4
NA (Progress Payment Permanent Material)
Additional TCN Housing
SUB-TOTAL
CO 5 POL Escalation Cost
CO 6 POL Escalation Cost
CO 7 POL Escalation Cost
SUB-TOTAL
LESS OVERPAYMENT
TOTAL POL ESCALATION COST
CO 8 Interim Allowance (Wage)
CO 9 Wage Escalation Cost
SUB-TOTAL
LESS OVERPAYMENT
TOTAL WAGE ESCALATION COST
Measure
LM
Each
Lump Sum
PC Sum
25
Each
Each
Each
As directed
Each
Final Quantities
238 LM
0 each
98
284 each
900 each
182 each
100
100
100
NA
6
100
100
100
100
100
US $
3400
6700
8520
As Billed
650000
As Shown
As Shown
As Shown
As Shown
As Shown
RandPula
900000
1000
1450
1500
130100
US $
809200
-0-
13014800
-0-
-0-
2419680
-0-
-0-
5999421
882317486
376898
3900000
4276898
RandPula
-0shy
-0shy
7308700
255223
63806
284000
1305000
273000
-0shy
310970881
842138
5307
780600
1628045
575601
1815344
77277517
79668462
1661539
78006923
297802
16022556
16320358
125720
16194638
TABLE 4 (Continued)
Item No Description
Unit of Measure
Total Revised Final Quantities
Contract Unit Price US $ RandPula
Sheet 4 of 4
Final Revised Contract Amount US $ RandPula
CO 10
CO 11
CO 12
Road Reserve cleared way Chobe River By-pass (included under items 302 303 and 304)
Importation Additional Sheeps foot roller (included under item 101)
Minor realignment of roadway at Nata
TOTAL CONSTRUCTION COST
100
100
100
886594384 406800487
ishy
I I I I I I I I
APPENDIX A
I CONSTRUCTION EQUIPMENT
I I I I U I I I I I
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT
I Descqription
2 Chevrolet Impala Sedan
5 jeep-Wagoner
7 jeep-Wagoner
1 Chevrolet Vega
23 Chevrolet Pickup
19 Mack Tractor (T675-8W)
2 Chevrolet Flat Bed
5 Mack-Platform Stake (T426-3500)
1 Mack-2000 Gal Fuel (T426-3500)
4 Mack Dump Truck 10 cy
2 Chevrolet Dump Truck 5 cy
1 Mack-Birmingham Tandum Lowboy Trailer
2 Mack-Gindy 25 Ton Tandum Semi Trailer
8 Heil- P3S 303 cy Dump Trailer
I 7 Fruehauf-TEO-F3-R 10000 Gal Tanker
5 Fruehauf-TEO-F2-R 6500 Gal Tanker
5 Fruehauf-Tandum Axle Dolly
2 Barko 14000 Telescopic Crane
6 Cobey 1062 Wagon Trailer
1 Cedarapids 443 Commander Crusher
1 Peerless Portable Base Stabilisation Plant
2 Atlantic International Water Treatment Plant
6 Caterpillar 631-B TractorS631-B Scraper
7 Caterpillar D8-H Dozer
2 4
Caterpillar D9- Dozer Caterpillar D6-C Dozer
2 Caterpillar 12-F Grader
5 Caterpillar 14-E Grader
U A-i
1
I
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (Cont)
Quantity
4
1
4
11Raygo
1
S1 2
ICaterpillar-200KW 3
1
1
1
1
1
3
2 2
2
I
1
2
2
I
1 2
8
1
j 8
1 4
9
1
Description
Caterpillar 966 Loader
Trojan 4000 Loader
Raygo 400A Compactor Vibrator
410A Compactor Vibrator
Vibro Plus Vibrating Sheepsfoot Roller
Bros 10000 Compactor
Bros 6000 Compactor
Generator Caterpillar - 125KW Generator
Little Reddevil Generator
Kholer 3KW Generator
Kholer 2KW Generator
Detroit Diesel Generator (2D-32)
Kholer Generator (5CKM61)
Hobart GR-3 03 Welders w trolley
Worthington 365 Compressor Worthington 160 Compressor
Kellypower Tamper
John Deere 2700 Disc Harrow10 Cut
ohn Deere 1630 Disc Harrow 7 Cut
Worthington WS-55 Rock Drill
Alemite Portable Service Station
Graco Lube Ranger
Worthington Wagon Drill
Layne Bowler Deep Well Pump
Layne Bowler Pump only
4 Centrifugal Pump
2 Centrifugal Pump
Columbian Steel Water Tanks 20000 US Gal
A-2
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (contd)
Quanti
1I Description
Caterpillar Parallel Shank Ripper
2 Fleco Blade Rake
4 Chainsaw
3 Gardner-Denver Compressor
5 Aerotron Radio Transmitters $1203
7 Aerotron Radio Receivers $2 10
16 SSB Radio Transceivers $1340
8 Auxilliary Radio Transceivers $1340
2 Cevy 4 x 4 Pickup Truck 8 Chevy 2 x 4 Pickup Truck
1 L B Smith Cone Crusher
2 Ford 4 x 4 (1164-14C Tractor)
2 Bros Sheepsfoot Roller
1 Hyster Towed Vibratory Compactor
During 1975 and 1976 the Contractor added the following listed equipment
1 Caterpillar No 14 Motor Grader
1 Caterpillar No 966 Loader
1 Trojan No 4000 Loader
1 Cone Crushing Plant 3 ft Standard Fine Bowl with 4 Deck Screens
4 Conveyor Units
A-3
I 1 I I I U I I
APPENDIX B
I I SOILS AND MATERIALS
I I 1 I I I I I 1
APPENDIX B
SOILS AND MATERIALS
(a) General
The road pavement is composed basically of two layers the surface
course and base course overlaying a compacted subgrade or embankment
The sources and volumes of the surface course and base course materials
are indicated in the Materials Utilization Diagrams included as Figures B-i
through B-4
(b) Subgrade
The subgrade soil consists primarily of aeolian fine sand except
for approximately 36 kilometers of the road for which the subgrade is a pan material consisting of clay In the pan areas special 1 Om thick
embankments were constructed with plasticity and fineness control of material
The subgrade and embankment soils were compacted to a minimum of 90
of modified AASHTO compaction The measured mean relative compaction
obtained immediately after compaction of the subgrade was 935 of the modified AASHTO maximum density
(c) Base Course
The majority of the base course materials are derived from aeolian deposits ie fine sand with a trace to some silty clay The
remaining base bourse approximately 15 of the total was obtained from pits having a large component of gravel The 15cm thick base
course is bank run or blended material for which the amounts of fines
and plasticity were controlled The base course materials were obtained from 123 base borrow pits and compacted to a minimum 95 of modified AASHTO density The measured mean relative compaction
directly after construction was 96 of the modified AASHTO maximum
density
(d) Surface Course
The 15cm thick surface course is well graded sandy gravel with
some silty clay fraction The materials for the road segment from
Kilometer 0+000 to Kilometer 173+000 are derived from calcrete deposits
while the materials for the remaining portion are derived from weathered
3-1
bedrock The surface course has controlled gradation plasticity and
durability to obtain sufficient strength to reduce ravelling to a minimum
particularly during the dry season and to resist the wear of traffic
Surface course materials have been obtained by screening crushing
and blending materials from 9 borrow areas and were compacted to a
minimum of 98 of modified AASUTO maximum dry density The comshy
posite properties for each borrow pit are indicated in the Average
Gradation Ourvesincluded as Figures B-5 through B-13 Directly
after construction of the surface course the measured mean relative
compaction was 100 of the modified AASHTO maximum density
B-2
N A TA K A ZUN GU LA RO0A D 70 033 90 CC
00 00 0 0 0+I 03- 30L K
0 I I
M 3 100 0002L [2
_
MATERIALS UTILIZATION DIAGRAM Fiure -I
NATA - KAZUNGULA ROAD
+--- 121
y T
MATERIALS UTILIZATION DIAGRAM Fgure R-Z
NAT A - KAZ UN GULA ROAD
07 2 230K300 220 220 232 252
I 3 3 2
MATERIALS UTILIZATION DIAGRAM Figure 2-3
itLT-m
CHOBE RIVER BY-PASS ROAD 02__ Q___ 0 60 40 - 0 50 0 i
-F-CEL
-Tl J-II II
MATERIALS UTILIZATION DIAGRAM Figure B-4
3 SIEVE ANALYSIS SMI~ia VIII
IY UN In~ VI STAISRS SIEVE NUMBfh SUE9 - usuLguNuus O-- aoIiUl- I1
11I a to to 0 i oIIIa lf I
II
SN Cu ye B
II N
o
i B _ ___~ N II 1 l s - Curi e At-
I 2 I a 6 4 2 i5 4 3 2 a -
GRAIN I IZE MILTERS
SILT AND CLAY SOILS GRAVEL SAND
I NUMBE1RSAMPLE DEPTH LL KIE IPTIONIELEV P1 ECIT
A Composit 38 19 CrusherAverage Runof 192 samples
B Composit 33 17 Surface Course Blend asAverage of 236 samples placed
MDD 1960 kgm Los Angeles Abrasion = 42 Average Blend Added 15=
REPUBLIC OF BOTSWANA TI PPETTS-ASSETT-NcCAIThY-STRATTOU MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY BOTSWANA-ZAMBIA GRAIN SIZE DISTRIBUTION BY DmArTE Q76HIGHWAY j PIT 2A DOi FIGURE B-5
E ANLYSISSIEVE NALYSIS NI
OPEING - In jS PhIMS-SEVE iNRh3EN son - MILLIMETER
V11 6plusmn SSIEVE
6 i S 0-4 0 10 miUS) 3055 3 001mesa a
9 I I I - -
Crye B
S bull
1TCrii INN20 1 e A- NI deg I FIK 46591 2 a045 4 2 1115 5 2 6
GRIISZ IN MILLIMETERS
COACE iE NtIUM FI SILT AD CLAY SOILSGRAVEL SAND
5r IBSAMPLE DEPTH ELEV LLP1
A Composite 28 10 Crusher Run Average of 229 samples
B Composite 28 11 Surface Course Blend as Placed Average of 58 samples
2050 kgm3 Averaoe Blend Added shy
TIPPETTS-ASETT-NCCARTIY-STATTONREPUBLIC OF BOTSWANA NEW YORK NY
MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS
BRAIN SIZE DISTRIBUTION BY NCZ jAATE9 876BOTSWANA-ZAMBIA
HIGHWAY PIT 14 amp 14A OWN FIGURE B-6
i
S ANALYSIS 01 ANALYSIS
SIEVE - n -IIII- SIZ-MII- - IN i
It a s 1
Ue a -- e B
- 1 -I-[_I - I I I
6l51 10 8 $514 1 O is 05I I 21 8GANSZNILMTR OA RE Filo 9OA-1i 1DI UM F log S ILT AND CLAY SO ILS
GRAVEL nSAND
E--l I UNEASMPLEDEPlTH ELEV LL P1 KWKIPTION
A Composite 36 19 Crusher Run
Average of 116 Samples
B Composite 36 15 Surface Course Blend Average of 138 samples
H GHWA E SA 18 SILT ANDURCLA-SIL
3kgm Los Angeles Abrasion 28
Av agau Pnd AAd = 907 ITI UETT$-ABBTT-NcentcentARTNY-STRATTON
NEW YORK NY
REPUBLIC OF BOTSWANA
MINISTRY OF WORKS amp COM24UNICATIONSIT NINEERS1
I I MGIELI7 I 1 8AIIGIWAE
I
4
SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU
V 1 Oe 001l
- -r--I-I -- I
S E- -IN S
KI zz7llfl$zIIIti z I
low560
20
2
IGRAIN SIZE IN MILLIMETERS
COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS
GRAVEL SAND
SAMP DEPTH ELEV L P1 0NBERIIPTI
A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples
B Composit( 28 13 Surface Course Blend as Placed
Average of 85 samples
Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA
REPUBLIC OF BOTSWANA TI EfTTS-AIETT-NCARTY-STRATTOi ITTqTPI yen O WOVQ A n rn WTraTTn~lz ENGINEERS NEW YOlK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8
-D IUR IB
II SIEVE ANALYIIS 1411 I LYIlMll
[urn $11min - I I ITUSE IVV I - mampINimums1 -l0 n 001
a1 i 4 is s 0 aL w I 2 0665S a a 4 i 0i
-7sl
96---
I RI IE IN M IEER
CfliEI FIN g o au SIT SILFIN M40 5C o432 14593 ry B6
ver 7 samples
NUMBE NERPI
Ay I GRAIN SIZE IN MILLIMETR
5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND
A Q A- Aii dd d~A
IMUBEIRIIIIPIi
3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables
B Composit 26 13 Surface Course BlendU as Placed
Average of 79 samples
AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =
REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9
SIEVE ANALYSIS IMmv na awLYoia
SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I
I- 01 001
e---__
Ir1 -NIP_]
20
OA
$05 9 2
E
I
86543
I
7tN
2 1 65
_OAlEED t
5 2
FN
I
GRAIN SIZE IN MILLIMETERS
1 111I
NU BE GRAVEL
COARSE
I
MEDIUM
I SAND
FSILT AND CLAY SOILS
SAMPLE4 DEP EEY 1 SCBI1PTIORI
A
B
Composite
Composite
38
26
17
13
Crusher Run Basaltic Aggregate
Average of 176 samples
Surface Course Blend -s Placed Average of 58 samples
Average MDD = 2135 kgm Los Angeles Abrasion = 38
Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY
WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971
3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10
SIEVE ANIALYSIS lNVINI1111 ANALYSIS
I EV OPE IN - INI8 TOSIIEENN1-MLII
I
I - - i ii 0
I GRI SIZEto N OILS 1
I ANDLI IS
G VELIZE I
IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL
-APL ESN
DEPTH ELEY LL PI DESCRIPTIONNUSMBE
3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples
B Composite 26 13 Surface Course Blend as Placed Average of 58 samples
Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34
Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY
BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11
___ I
SIEVE ANALYSIS W11 ANKEm SIS
SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS
01 001
sodego
i i
U Ae
6 559 2 a65 3 2 1 6532 S
II GRAIN SIZE INMILLIMETERS
=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL
GRAVEL SN
I SAMPE DEPTH ELEV LL P)S DESCRIPTION
A omposite 28 10 Crusher Run
SAverage of 72 samples
B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples
Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20
REPUBLICUINISTRY 0OF OF
BOTSWANA WORKS amp COMMUNIGTIONS
TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12
I
SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM
-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U
I _
I1li
Ia _ Cu ve
N IC A11
IQI II
1 IG S IIIMETE
I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND
SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION
A Composite 34 15 Crusher Run Average of 74 samples
B Composite 29 12 Surface Course Blend as Placed
Average of 42 samples
MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15
REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA
ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N
NEW sy cKA
YORK NYT E-2 5 1 7 7
HIGHWAY PIT 32A Mwe FIGURE B-13
I I I I I I I I
APPENDIX C
I WATER WELL LOCATIONS
I I I I I I I I I
APPENDIX C WATER WELL LOCATIONS
WELL NO 3
Location Km 171 Lt of centerline 200 meters
Drill - 6 x 392
Ream - 8 x 92
Case - 6 x 84
Test - 24 Hours - 276
Pump 6000 G P H
Total depth - 392
Pumped at 150
24 Hr Drawdown - 3
Water Good
WELL NO 4
Location Km 175 - Lt of centerline 100 meters
Drill - 6 x 380
Ream - 8 x 82
Case - 7 x 82
Test - 276
Pump 1800 G P H
Total depth - 380
Pumped at 200
Drawdown 24 Hr - 100
Water Good
WELL NO 5 (Govt No 2436
Location Km 178 - Lt of centerline 115 meters
Test -276
Pump - 1400 G P H
Total depth - 160
Pumped at 140
24 Hr Drawdown - 60
Water Good C-1
WELL NO 6
Location Km 183 - Lt of centerline 60 meters
Drill - 6 x 436
Ream - 8 x 86
Case - 7 x 86
Test - 276
Pump - 500 G P H
Total depth - 436
Pumped at 250
24 Hr Drawdown - 150
Water Good
WELL NO 7 - (Govt No 2435)
Location Km 189 - Rt of centerline 100 meters
Clean amp Test
Pump - 6000 G P H
Pumped at 140
24 Hr Drawdown - 10
Water Good
WELL NO 14
Location Km 252 - Lt of centerline 100 meters
Drill - 6 x 250
Ream - 8 x 53
Case - 6 x 53
Test - 276
Pump - 6000 G P H
Total depth - 250
Pumped at 150
24 Hr Drawdown - 6
Water Good
C-2
WELL AT KM 256 MAINTENANCE FACILITY NO 3
Location Km 256 - Lt of centerline 200 meters
Depth - 100 feet
Water Rest Level - 42 feet
Depth Pump Set - 70 feet
24 Hr Test - 1800 G P H
WELL NO 15
Location Km 245 - Rt of centerline 40 meters
Drill - 6 x 260
Ream - 8 x 54
Case - 54
Test -276
Pump - 1500 G P H
Total depth - 260
Pumped at 200
24 Hr Drawdown - 140
Water Good
WELL NO 16 Location Km 236 -Rt of centerline 30 meters
Drill - 6 x 250
Ream - 8 x 22
Case - 6 x 22
Test - 276
Pump -6000 G P H
Total depth - 288
Pumped at 150
24 Hr Drawdown - 10
Water Good
C-3
WELL NO 17
Location Km 224 - Rt of centerline 30 meters
Drill - 10 x 89
Case - 8 x 85
Drill- 8x 43
Drill - 6 x 38
Case -6 x 132
Test - 276
Pump -2000 G P H
Total Depth - 170
Pumped at 100
24 Hr Drawdown - 11
Water Good
WELL NO 18
Location Km 217 - Lt of centerline 200 meters
Drill -i0 x 70
Case - 7 x 70
Drill - 7 x 52
Drill - 6 x 88
Case - 6 x 122
Test - 276
Pump 2400 G P H
Total depth - 210
Pumped at 200
24 Hr Drawdown - 140
Water Good
C-4
WELL NO 19
Location Km 213 - Lt of centerline 100 meters
Drill - 10 x 44
Case - 8 x 40
Drill - 8 x 76
Drill 6 x 130
Case - 6 x 120
Test - 276
Pump - 6000 G P H
Total depth - 210
Pumped at 60
24 Hr Drawdown - 10
Water Good
WELL NO 20
Location Km 143 - Rt of centerline 100 meters
Drill - 10 x 240
Case - 7 x 220
Drill -6 x 378
Case - 6 x 240
Case - 5 x 240
Test - 276
Pump -1500 G P H
Total depth - 618
Pumped at 460
24 Hr Drawdown - 105
Water slightly salty to taste but drinkable
C-5
WELL NO 23
Location Km 139 - Lt of centerline 100 meters
Drill - 12 x 290
Place amp Extract Case - 10 x 290
Drill - 8 x 30
Drill - 6 x 40
Case - 8 x 290
Case - 6 x 320
Test - 276
Pump - 1200 G P H
Total depth - 360
Pumped at 330
24 Hr Drawdown - 120
Water salty
WELL NO 24
Location Km 135 - Lt of centerline 500 meters
Drill - 12 x 270
Drill - 10 x 10
Case - 10 x 270
Drill -8 x 30
Case - 8 x 290
Case -6 x 310
Case - 5 x 320
Test -276
Pump -4000 +G P H
Total depth - 320
Pumped at 270
24 Hr Drawdown - 2
Water Salty
C-6
I
5
WELL KM 205 MAINTENANCE FACILITY NO 2
Location Km 105 - Lt of centerline 40 meters
Depth - 302 feet
~ Water Rest Level - 82 feet
Depth Pump Set - 150 feet
48 Hr Test - 3000 + G P H
WELL NO 26
Location Km 82 - Lt of centerline 100 meters
Drill - 12 x 145
5 -8 x145
Drill - 8 x 23
-Case
I Drill - 7 x 10
Case - 7 x 168
I Case - 6 x178
Test - 276
Pump - 1200 G P H
Total depth - 306
I Pumped at 140
24 Hr Drawdown - 35
I Water Good
C
I 0-7
WELL NO 27
Location Km 77 - Lt of centerline 100 meters
Drill - 12 x 174
Install amp Extract Case - 10 x 174
Case - 8 x 174
Drill - 9 x 68
Drill - 8 x 64
Case - 7 x 242
Case - 6 x 306
Test - 276
Pump - 4000 + G P H
Total Depth - 306
Pumpe at 240
24 Hr Drawdown - 0
Water Good
WELL NO 28- (Govt No 2465)
Location Km 63 - Rt of centerline 100 meters
Clean amp Extract Case - 300
Ream - 10 x 98
Ream - 8x 27
Ream - 6 x 12
Case - 8 x 98
Case - 6 x 125
Test - 276
Pump - 1000 + G P H
Total depth - 137
Pumped at 130
24 Hr Drawdown - 33
Water Good
C-8
WELL NO 30
Location Km 47 - Rt of centerline 400 meters
Drill - 12 x 132
Case - 10 x 89
Install amp Extract Case - 12 x 43
Drill - 10 x 117
Case - 7 x 242
Drill - 6 x 183
Install amp Extract Case - 6 x 408
Test - 276
Pump - 1000 G P H
Total depth - 408
Pumped at 160
24 Hr Drawdown - 77
Water Salty
WELL NO 31
- Lt of centerline 200 metersLocation Km 44
Drill - 12 x 110
Case - 10 x 100
Drill - 10 x 142
Case 8 x 142
Drill - 8 x 250
Case 7 x 392
Drill - 6 x 78
Test - 276
Pump - 3000 G P H
Total depth - 502
Pumped at 160
24 Hr Drawdown - 44
Water Salty
C-9
WELL NO 32
Location Km 42 - Lt of centerline 100 meters
Drill - 12 x 108
Case - 10 x 108
Drill - 10 x 212
Drill - 8 x 120
Case - 6 x 340
Case - 8 x 182
Test - 276
Pump - 3000 + G P H
Total depth - 448
Pumped at 160
24 Hr Drawdown - 20
Water Salty
WELL NO 34
Location Km 35 - Lt of centerline 200 meters
Drill - 12 x 230
Install amp Extract Case - 10 x 230
Drill - 8 x 30
Case -6 x 260
Drill - 6 x 160
Case -5 x 324
Case - 8 x 20
Test - 276
Pump -1000 + G P H
Total depth - 420
Pumped at 150
24 Hr Drawdown - 100
Water Salty
C-10
WELL NO 36
Location Km 7 N E along old track from Km 63
Drill - 12 x 180
Case - 10 x 180
Drill - 10 x 231
Case - 8 x 211
Drill- 8x 254
Case - 6 x 245
Test -276
Pump -4000 + G P H
Total depth - 265
Pumped at 180
24 Hr Drawdown - 0
Water Good
C-11
I 3 I 1 I I I I B j APPENDDC D
SYNOPSIS 0 KEY CORRESPONDENCE
3 DURING CONSTRUCTION
I pound I I I 1 I I
On September 1 1973 the Contractor confirmed the
estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts
On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project
On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be
obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated
On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine
On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation
On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension
On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension
On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval
On October 15 1973 the Engineer returned the construction progress schedule for correction
On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim
D-I
On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor
On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project
On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25
On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter
On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents
On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract
On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised
On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading
On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule
On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request
On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period
D-2
On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report
On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material
On August 19 1974 the Contractor submitted an updated construction progress schedule for approval
On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases
On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor
On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor
On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project
On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course
On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country
On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course
On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions
On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule
On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress
D-3
On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract
On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana
On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor
On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion
On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations
On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases
On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season
On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees
On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections
On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project
On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course
On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project
On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract
D-4
October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request
On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor
On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620
On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project
On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y
completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense
On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted
On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project
On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim
On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic
On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor
On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976
D-5
On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time
On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares
On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material
On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500
On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor
On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula
On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana
OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected
On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road
On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road
Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10
On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued
On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced
On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091
On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091
Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued
D-6
I I IUUU U U UU I U
E PROJECT PHOTOGRAPHS
I IIIU U I
I Crushing Plants Surface Course
Pit 2A
Pug Mill Blending Surface Course
Pit 25A
II Surface Course
Pit 25A
UURYPTOERTOSE Pug Mil Blending
Road Reserve Bush Clearing
Km 242
U
Embankment Construction Km 287
IN
Road Construction Water Supply
Km 189
ROADWAY UNDER CONSTRUTION
II
E-2
Stockpiling Material Base Course
Special Embankment Construction Km 232
Watering of Embankment Km 257
ROADWAY UNDER CONSTRUCTION E-3
Culvert Assembly
Twin Culvert with Sand-Cement Pitching
Multiple Culverts with Sand-Cement Pitching
CULVERT INSTALLATIONS E- 4
AT Km 25
AT Km 194
Emergency Landing Strip Kra 2605
FINISHED ROADWAY E- 5
AT Km 286
AT Chobe By-Pass Junction Km 297
I Chobe By-Pass Road Near Ngoma Bridge
E-6FINISHED ROADWAY
5307
TABLE 1 CHANGE ORDERS
Change Order Cost No Purpose US$ RandPula
1 Hotel rentals for Engineers staff while awaiting completion of housing units 842138
2 Additional air-conditioning units for staff housing 376898
3 Arrangements for monthly advance progress payments for permanent materials on site shy
4 Addition to the number of TAMS staff housing units 3900000 780600
5 For escalation of POL costs between 11 November 1973 and 11 February 1974 575601
6 For additional escalation of POL costs between 11 February 1974 and 14 May 1974 1815344
7 For additional escalation of POL costs between 14 May 1974 and 19 July 1974 77277517
LESS OVERPAYMENT (-)1661539
8 Interim allowance by GOB authorization to all employees to maximum rate of R500 per month between April 1973 and March 1974 297802
9 Escalation of minimum wage rates for field personnel 16022556
LESS OVERPAYMENT (-)125720
10 Reduction InRoad Reserve clearing on Costs included in Chobe By-Pass Road amounts in pay
items 302 303 and 304
11 For increase in mobilization costs to Costs included in cover importation of additional compaction amounts in equipment pay item 101
12 For minor realignment of roadway at Costs included in Nata contract pay items
TOTALS 4276898 95829606
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II STAFFING Excluding the mobilization and demobilization periods the major conshy
struction efforts took place during the calendar years 1974 1975 and 1976
A summary of the project staffing is presented in Table 2
TABLE 2
AverageMaximum Staffing Levels
Contractors Staff Engineers Staff
YearSource US Botswana TCN Code 941 US Botswana TCN
1974 17 232 2 22 4 11 9 1975 18 302 3 43 4 12 9
1976 15 290 3 40 4 13 7
Maximum 20 359 5 49 4 14 9
A paving specialist visited the Project in December 1973 and une 1974
in connection with proposals for upgrading the Project and again in March 1975
in connection with selection of material for the surface course
A partner from the Consultants home office made periodic visits to the
Project sites
III TRAINING
The Contractor trained Botswana Staff as drivers equipment operators
and oilers surveyors soils technicians mechanics helpers stewards and
maintenance workers
The Engineer trained Botswana Staff as soils technicians surveyors
drivers draftsmen and office clerical workers
IV CONSTRUCTION EQUIPMENT
In compliance with a requirement of the Contract Documents the Conshy
tractor presented a schedule of major plant and equipment to be used on the
Project Some adjustments were made to the listing as the job progressed
-4shy
Advances for the purchase of new items (materials construction plant
equipment tools spare parts maintenance supplies and buildings furniture
and equipment for the Contractors and Engineers camps) totaling U S
$124443700 and local currency Rand 225000 were made available to the
Contractor as provided for by the Contract Documents Reimbursement of
these advances were made in January1974 in accordance with the Contract
requirements
The major items of construction and shop equipment imported by the
Contractor for use on the project are listed in Appendix A
V MATERIALS UTILIZED
A SOILS
The formation consists of two layers the surface and base courses
placed on a compacted subgrade or embankment Base course materials were
obtained from 123 borrow pits along the roadway Surface course materials
which required processing were obtained from 9 borrow areas Appendix B
contains the Material Utilization Diagrams which show the sources of these
borrow materials and their utilization along the road Also included in Appendix
B are the Average Gradation Curves of the processed surface course materials
B WATER
Water for construction was obtained from 24 water wells drilled by the
Contractor Appendix C contains information on locations depth and yields
of the wells
VI PROTECT HISTORY
A GENERAL The engineers inspectors and materials technicians employed by TAMS
systematically inspected construction operations and sampled and tested mashy
terials being incorporated in the work to ensure compliance with contract reshy
quirements Each month a determination was made of the work accomplished
-5shy
and eligible for payments and pay quantities for the Contractors monthly
progress estimates were certified
The Engineers survey parties verified reference points established
by the Contractors personnel for vertical and horizontal control points estabshy
lished along the preliminary base line and verified limits of bush clearing
flagged by the Contractor After the final line was staked detailed cross shy
sections were taken for computation of pay quantities Check measurements
were made periodically to verify the construction performed by the Contractor
As sections of the Project were completed final measurements were taken and
as-built plans prepared
Periodic progress reports and charts were prepared for the Government
and AID throughout the construction phase
After substantial completion of the works in January1977 a final inshy
spection of the project was made On January 19 1977 a Certificate of
Completion was issued by the Engineer As required by the Contract the
six-month maintenance period commenced
A synopsis of the more important correspondence initiated or received
by the Consultant in connection with administration of the Contract is included
in Appendix D
B SEQUENCE OF EVENTS
During late July and early August1973 the Contractor began to mobilize
personnel at Pandamatenga preparatory to commencing construction of the main
camp facilities
A sub-contract for construction of the engineers facilities atd some
items of the Contractors camp was negotiated between Grove International
and Botzam Services of Livingstone Zambia During September 1973 the subshy
contractor mobilized men equipment and material at Pandamatenga and comshy
menced construction on main camp housing units
On September 20 1973 the Contractor having been denied access
through the Botswana-Rhodesia Border at Pandamatenga for mobilizing equipment
material and supplies decided to shift the main camp site to the vicinity of
Kazungula The camp site was established at Kilometer 3+400 on the Chobe
River By-Pass road approximately 8 Kilometers east of the village of Kasane
3 -6shy
During late October construction of housing shops offices wareshy
houses and ancillary facilities commenced at the relocated main camp site
The camp facilities were substantially completed by the end of March 1974
Temporary satellite camps were later established at Pandamatenga at Kilometer
105 and at Kilometer 63 on the Nata-Kazungula segment of the project
Mobilization of construction equipment personnel material and supplies
began in early October 1973 and continued through April 1974
During the remainder of 1973 the construction efforts were concentrated
on construction of the main camp site A small amount of clearing grubbing
and earthwork was accomplished on the Chobe River By-Pass Road and on the
northern end of the Nata-Kazungula road
1 Principal Construction Accomplishments During 1974
Clearing and Grubbing - 5366 hectares completed between
Kilometer 297 and Kilometer 169 on the Nata-Kazungula segment
of the project
- Earthworks - excavation and borrow quantities came to a total
of approximately 506500m with the major portion of this work
performed between Kilometer 297 and Kilometer 196 on the Nata-
Kazungula segment of the project
- Pipe culverts - installed 59 pipes ranging in size from 18 to 60
diameter for a total of 1129 linealmeters between Kilometer 297
and Kilometer 196 on the Nata-Kazungula segment and from
Kilometer 0+000 to Kilometer 3+500 on the Pandamatenga Access
Road
Base Course - approximately 113600m placed between Kilometer
297 and Kilometer 197 on the Nata-Kazungula segment and from
Kilometer 0+000 to Kilometer 2+350 on the Pandamatenga Access
Road
Surface Course - approximately 19000m was placed between
Kilometer 292 and Kilometer 273+500 on the Nata-Kazungula segment
5-7shyI
2 Principal Construction Accomplishments During 1975
- Clearing and Grubbing - 634 hectares completed between
Kilometer 169 and Kilometer 2+000 on the Nata-Kazungula
segment between Kilometer 0+000 and Kilometer 14+000
on the Chobe River By-Pass segment and from Kilometer 2+350
to Kilometer 5+275 on the Pandamatenga Access Road
- Earthworks - excavation and borrow quantities came to a total
of 379145m3 with the major share of this work performed
between Kilometer 196 and Kilometer 49+000 on the Nata-
Kazungula segment and on the Pandamatenga Access Road
- Pipe Culverts - 69 pipes were installed ranging in size from
18 to 60 in diameter for a total of 1308 lineal meters
between Kilometer 200 and Kilometer 65 on the Nata-Kazungula
segment and from Kilometer 0+000 to Kilometer 5+200 on the
Pandamatenga Access Road
Base Course - approximately 219000m was placed between
Kilometer 197 and Kilometer 57 on the Nata-Kazungula segment
and on the entire 52 kilometers of the Pandamatenga Access
Road
Surface Course - approximately 177 000m of surface material
placed between Kilometer 273 and Kilometer 130 on the Nata-
Kazungula segment
3 Principal Construction Accomplishments During 1976
- Clearing and Grubbing - completed 2188 hectares between
Kilometer 2+000 and Kildmeter 0+000 and between Kilometer
297+300 and Kilometer299+600 on the Nata-Kazungula segment
and between Kilometer 14+000 and Kilometer 65+000 on the
Chobe River By-Pass segment which completed this item of
work
- Earthworks - excavation and borrow quantities came to a total
of 235092m which completed this item of work
-8shy
Pipe Culverts - 36 pipes were installed ranging in size from
18 to 48 diameter for a total of 973 lineal meters The
major share of this work was performed on the Chobe River
By-Pass segment
Base Course- 206120m3 was placed on the Nata-Kazungula
road between Kilometer 57+600 and Kilometer 0+000 and between
Kilometer 297+300 and Kilometer 299+588 and on the Chobe River
By-Pass road between Kilometer 0+000 and Kilometer 65+048
Surface Course - 260878m placed between Kilometer 130+000
and Kilometer 0+000 on the Nata-Kazungula road and between
Kilometer 0+000 and Kilometer 65+048 on the Chobe River By-Pass
Road
4 Principal Construction Accomplishments During 1977
The Contractor continued to work on final clean-up and corrective
work in accordance with the punch list provided by the Engineer On January
19 1977 the Completion Certificate was issued with a list of outstanding
deficiencies attached These were rectified by the Contractor during the
early part of the six-rnnth maintenance period The Contractor in compliance
with the Engineers instructions installed 10 additional 18 diameter CMP
culverts on the Nata-Kazungula road between Kilometer 236 and Kilometer 238
Two additional pipes were installed at Kilometer 6+540 on the Chobe River
By-Pass Road Rock was placed on sand fill slopes and at culvert inlets and
outlets to guard against erosion on numerous sections of the Nata-Kazungula
Road and Chobe River By-Pass Road The Contractor maintained the project
until July 19 1977 when a Certificate of Maintenance was issued
C PROTECT SCHDULING AND DELAYS
On October 5 1973 as required by Clause 12 Part II-Conditions of
Particular Application of the Conditions of Contract - the Contractor submitted
his proposed construction schedule for the project The schedule was returned
to the Contractor on October 16 1973 for modifications It was resubmitted
and finally approved on March 19 1974
-9shy
In October 1974 the Contractor presented a revised construction schedule
It was not approved by the Engineer who informed the Contractor that the
actual rate of progress was far below that projected by the schedule and reshy
quested an explanation as to what steps were contemplated to bring progress
on the project up to schedule
On November 6 1974 the Contractor again presented a revised conshy
struction schedule reflecting a completion date beyond the contract period for
completing the Project The Contractor made reference to conditions which
had allegedly caused delays to progress on the Project and stated that claims
would be presented requesting time extension for completion of the Project
The revised schedule was not approved pending presentation by the Contractor
of all supporting details
By the end of December 1974 the Contractor had completed 29 percent
of the work then specified in the Contract as modified by ten change orders
This compared with 55 percent scheduled to be completed according to the
approved progress schedule
On February 27 1975 the Engineer notified the Contractor that progress
was continuing to fall further behind the approved construction schedule and
requested the Contractor to submit in writing his plans for bringing progress
up to schedule in compliance with pertinent provisions of the Contract On Tuly
24 1975 the Contractor again presented a revised construction schedule reflectshy
ing a completion date of August 31 1976 This schedule was accepted by
the Engineer in September 1975 with the provision that acceptance of the
schedule should in no way be construed as an approval for extension of time
for completion of the project
By the end of 1975 the Contractor had completed 63 percent of the work specified in the contract as compared with 73 percent projected in the revised
construction schedule
On March 11 1976 the Contractor presented the 6th revision of the
construction schedule reflecting a completion date of December 31 1976
This schedule is included herein as Figure 2 The schedule was accepted by
the Engineer on March 24 1976 with the provision that acceptance of this
schedule should in no manner be construed as an approval of extension of time
for completing the project
-0shy
LEGEND CONSTRUCTION PROGRESS CHART BOTSWANA-ZAMBIA HIGHWAY
WORK ELEMENT lt I
MOBILIZATION 7 T z ltgt 7gtlt74gtlaquo 7
GENERAL gt gt lt lt+ $ lt2740gt77
SURVEYS
AND SITE CLEARING
PREPARESUGRADE lt gt
7+47
I EARTHWORKS ~kgt1 E ~gt07 gt0gt0 ~laquolt gtgt~lt7laquogt 77gt
BASE COURSE
SURFACE COURSE ~lt 7ltgtlaquoD4
+4 7iA
gt
ltgt7 77 gtlt4lt
P
DRAINAGE I-shy___MAINTENANCEI I _ _ _ _
FACILITIES - -gt 7 7 7 7lt7 ltgttVViV77W7vV~7~
HIGHWAY HARDWARE lt
CHANGE ORDERS AND I
DAY WORKS lt
TOTAL
VII FINANCIAL SUMMARY
As indicated in Section I-B of this report the funds available (from
AID) for the construction of this project were in the amount of U S $16600000
The disbursements of monies for the construction and construction supervision
through May 31 1978 are summarized in Table 3 along with the original esshy
timated amounts for comparison
TABLE 3
Disbursements Through Original Estimated
May 31 1978 Amounts
US $ RandPula US $ RandPula
Construction Costs (Grove International See Table 5) 882317486 310970881 897784200 316082500
Change Orders (From Table 1) 4276898 - 95829606
Supervision of Construction (TAMS) 129796299 - 135468100 -
TOTALS 1016390683 406800487 1033252300 316082500
From original contracts and supplements through May 31 1978
Table 4 presents a summary of final construction costs including
those by Contract Pay Items disbursed to the Contractor (Grove International)
The above listed costs do not include back charges on the loan which
charges are not available to the Engineer
The Contractor has submitted a series of claims requesting extensions
of time and reimbursement for claimed additional costs These claims are
currently under review by the Engineer A supplemental report will be issued
by the Engineer after the Contractors claims have been resolved and will
include any additional costs and time extensions awarded to the Contractor
Assuming an average rate of exchange of 1000 Pula or 1000 Rand
equal to 1350 U S Dollars and neglecting bank charges the approximate
loan balance as of May 31 1978 was U S $940000
-12shy
An average conversion rate of exchange has been used to estimate
the loan balance since the actual rate varied and actual draw-down figures
are not available to the Engineer
At the time of Project commencement the currency of Botswana was
the Rand In August 1976 the Botswana Government changed over from the
Rand to the Pula as the official currency During the course of construction
local currency disbursements have been made to the Contractor in both Rand
and Pula
-13shy
--- =1m =- M Il-- M=M m -
Sheet 1 of 4TABLE 4 - SCHEDULE OF FINAL CONTRACT QUANTITIES
Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount RandPula
No Description Measure Final Quantities US $ RandPula US $
101 Mobilization Lump Sum 10000 57077200 58360600 -0shy
201 Engineers Staff Housing 2-Bedroom House Each 1 3333 1300000 272100 1300000 272100
202 Engineers Staff Housing 3-Bedroom House Each 3 10000 1400000 339300 4200000 1017900
203 Engineers Staff Housing Technicians House Each 4 10000 650000 130100 2600000 520400
204 Engineers Staff Housing Jr Staff Housing Each 16 10000 112500 19600 1800000 313600
205 Moving amp Re-erection of Engineers Staff Housing Each move NOT APPLICABLE
206 Engineers Main Office Lump Sum 10000 1800000 306300
207 Engineers Main Laboratory Lump Sum 10000 2600000 407700
208 Moving amp Re-erection of Engineers Main Office Each Move NOT A P L I CA B L E and Main Laboratory
209 Engineers Forward OfficeLaboratory Each 2 10000 766300 1532600 -0shy
210 Additional Surveying Office Laboratory and Prime Cost 69809 1500000 1047146 -0-Communication Equipment
211 Contractors Expenses and Profit on Percent 69809 25 261787 -0-Prime Cost Item 210
212 Provide and Maintain Vehicles for ihe Engineers Staff Vmonth 304 Vmonth 24000 17100 7296000 5198400
301 Basic Survey and Setting Out km 370590 km 48500 13400 17973600 4965905
302 Clear Heavy Bush Hectare 514075 ha 23200 7500 11926540 3855563
303 Cleat Light Bush Hectare 70053 ha 15500 5000 10858215 3502650
304 Clear Grassy Hectare 1775 ha 12400 4000 2201000 710000
401 Prepare Sand Subgrade for Embankment m2 3335443 m 2 011 006 36689873 20012658
402 Prepare Clay Subgrade for Embankment m2 408450 m 2 023 011 9394350 4492950
501 Construct Standard Embankment i3 865895 m3 117 047 101309715 40697065
3502 Construct Special Embankment m3 254779 m 196 074 49936684 18853646
030 384035 129450503 Excavate Unsuitable Material m3 4315 m3 089
601 Base Course m3 538854 m3 310 120 167044740 64662480
602 Overhaul of Base Course Material m3km 46462 m3kr 028 010 1300936 464620
701 Remove Overburden from Surface Course Borrow Pits m3 260056 m3 060 016 15603360 4160896
702 Surface Course m3 457260 m3 545 210 249206700 96024600
703 Haul of Surface Course Material m3kmn 6572330 m3kr 0102 0034 67037766 22345922
TABLE 4 (Continued) Sheet 2 of 4
Item No Description
Unit of Measure
Total Revised Final Quantities
Contract Unit Price US $ RandPula
Final Revised Contract Amount US $ RandPula
801
802
803
Excavation and Backfill for Cuiverts up to 48 inches in diameter
Excavations for foundations of Culverts 48 inches and over
Backfilling culverts 48 inches and over
m3
m3
m3
558512 m3
94946 m3
322010 m3
480
270
490
330
140
360
2680858
256352
1577849
1843090
132923
1159236
804 Nestable Galvanized Corrugated Metal Pipe 18 inches in diameter 14 USSG
PIPE LM 249963 LM 4380 820 10948379 2049697
END SECTIONS Each 388 each 6660 225 2584080 87300
805 Nestable Galvanized Corrugated Metal Pipe 24 inches in diameter 14 USSG
PIPE LM 28104 LM 5560 1100 1562582 309144
Supply additional 24 inch diam Pipe 114035
END SECTIONS Each 34 each 10200 800 345800 27200
Supply additional End Sections 30600
806 Nestable Galvanized Corrugated Metal Pipe 36 inches in diameter 12 USSG
PIPE LM 19506 LM 10500 1600 2048130 312096
END SECTIONS Each 28 each 27600 2100 772800 58800
807 Nestable Galvanized Corrugated Metal Pipe 48 inches in diameter 12 USSG
PIPE LM 11522 each 13500 2200 1555470 253484
Supply additional 48 inch diam Pipe 10480
END SECTIONS Each 10 each 76200 4300 762000 43000
808 Nestable Galvanized Corrugated Metal Pipe 60 inches in diameter 10 USSG
PIPE LM 48768 LM 20400 2700 9948672 1316736
Supply additional 60 inch diam Pipe 47510
809
810
811
Excavate inlet and outlet drains mitre ditches and roadway ditches
Sand-cement Pitching
Clay slope Protection
m3
m3
m2
477781 m3
276769 m3
NA
110
2300
030
3000
100
525559
636569
-0-
143334
830307
-0shy
Supplied but not installed
mi -blN mN -m~ m ml m min nmlW arm~ nn- a a a a1 al a
TABLE 4 (Continued) Sheet 3 of 4
Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount No Description
812 Supply Nestable Galvanized Corrugated
Metal Pipe 18 inches in diameter 14 USSG
PIPE
END SECTIONS
901 Construct Maintenance Facility Complex
902 Water Pump
903 Contractors Expenses and Profit on Prime Cost Item 902
1001 Road Signs
1002 Guide Posts
1003 Kilometre Posts
Dayworks
TOTAL-SCHEDULE OF QUANTITIES
a
0) CO I CO 2
TAMS Staff Hotel Accommodation
Air Conditioners TCN Houses
CO 3
CO 4
NA (Progress Payment Permanent Material)
Additional TCN Housing
SUB-TOTAL
CO 5 POL Escalation Cost
CO 6 POL Escalation Cost
CO 7 POL Escalation Cost
SUB-TOTAL
LESS OVERPAYMENT
TOTAL POL ESCALATION COST
CO 8 Interim Allowance (Wage)
CO 9 Wage Escalation Cost
SUB-TOTAL
LESS OVERPAYMENT
TOTAL WAGE ESCALATION COST
Measure
LM
Each
Lump Sum
PC Sum
25
Each
Each
Each
As directed
Each
Final Quantities
238 LM
0 each
98
284 each
900 each
182 each
100
100
100
NA
6
100
100
100
100
100
US $
3400
6700
8520
As Billed
650000
As Shown
As Shown
As Shown
As Shown
As Shown
RandPula
900000
1000
1450
1500
130100
US $
809200
-0-
13014800
-0-
-0-
2419680
-0-
-0-
5999421
882317486
376898
3900000
4276898
RandPula
-0shy
-0shy
7308700
255223
63806
284000
1305000
273000
-0shy
310970881
842138
5307
780600
1628045
575601
1815344
77277517
79668462
1661539
78006923
297802
16022556
16320358
125720
16194638
TABLE 4 (Continued)
Item No Description
Unit of Measure
Total Revised Final Quantities
Contract Unit Price US $ RandPula
Sheet 4 of 4
Final Revised Contract Amount US $ RandPula
CO 10
CO 11
CO 12
Road Reserve cleared way Chobe River By-pass (included under items 302 303 and 304)
Importation Additional Sheeps foot roller (included under item 101)
Minor realignment of roadway at Nata
TOTAL CONSTRUCTION COST
100
100
100
886594384 406800487
ishy
I I I I I I I I
APPENDIX A
I CONSTRUCTION EQUIPMENT
I I I I U I I I I I
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT
I Descqription
2 Chevrolet Impala Sedan
5 jeep-Wagoner
7 jeep-Wagoner
1 Chevrolet Vega
23 Chevrolet Pickup
19 Mack Tractor (T675-8W)
2 Chevrolet Flat Bed
5 Mack-Platform Stake (T426-3500)
1 Mack-2000 Gal Fuel (T426-3500)
4 Mack Dump Truck 10 cy
2 Chevrolet Dump Truck 5 cy
1 Mack-Birmingham Tandum Lowboy Trailer
2 Mack-Gindy 25 Ton Tandum Semi Trailer
8 Heil- P3S 303 cy Dump Trailer
I 7 Fruehauf-TEO-F3-R 10000 Gal Tanker
5 Fruehauf-TEO-F2-R 6500 Gal Tanker
5 Fruehauf-Tandum Axle Dolly
2 Barko 14000 Telescopic Crane
6 Cobey 1062 Wagon Trailer
1 Cedarapids 443 Commander Crusher
1 Peerless Portable Base Stabilisation Plant
2 Atlantic International Water Treatment Plant
6 Caterpillar 631-B TractorS631-B Scraper
7 Caterpillar D8-H Dozer
2 4
Caterpillar D9- Dozer Caterpillar D6-C Dozer
2 Caterpillar 12-F Grader
5 Caterpillar 14-E Grader
U A-i
1
I
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (Cont)
Quantity
4
1
4
11Raygo
1
S1 2
ICaterpillar-200KW 3
1
1
1
1
1
3
2 2
2
I
1
2
2
I
1 2
8
1
j 8
1 4
9
1
Description
Caterpillar 966 Loader
Trojan 4000 Loader
Raygo 400A Compactor Vibrator
410A Compactor Vibrator
Vibro Plus Vibrating Sheepsfoot Roller
Bros 10000 Compactor
Bros 6000 Compactor
Generator Caterpillar - 125KW Generator
Little Reddevil Generator
Kholer 3KW Generator
Kholer 2KW Generator
Detroit Diesel Generator (2D-32)
Kholer Generator (5CKM61)
Hobart GR-3 03 Welders w trolley
Worthington 365 Compressor Worthington 160 Compressor
Kellypower Tamper
John Deere 2700 Disc Harrow10 Cut
ohn Deere 1630 Disc Harrow 7 Cut
Worthington WS-55 Rock Drill
Alemite Portable Service Station
Graco Lube Ranger
Worthington Wagon Drill
Layne Bowler Deep Well Pump
Layne Bowler Pump only
4 Centrifugal Pump
2 Centrifugal Pump
Columbian Steel Water Tanks 20000 US Gal
A-2
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (contd)
Quanti
1I Description
Caterpillar Parallel Shank Ripper
2 Fleco Blade Rake
4 Chainsaw
3 Gardner-Denver Compressor
5 Aerotron Radio Transmitters $1203
7 Aerotron Radio Receivers $2 10
16 SSB Radio Transceivers $1340
8 Auxilliary Radio Transceivers $1340
2 Cevy 4 x 4 Pickup Truck 8 Chevy 2 x 4 Pickup Truck
1 L B Smith Cone Crusher
2 Ford 4 x 4 (1164-14C Tractor)
2 Bros Sheepsfoot Roller
1 Hyster Towed Vibratory Compactor
During 1975 and 1976 the Contractor added the following listed equipment
1 Caterpillar No 14 Motor Grader
1 Caterpillar No 966 Loader
1 Trojan No 4000 Loader
1 Cone Crushing Plant 3 ft Standard Fine Bowl with 4 Deck Screens
4 Conveyor Units
A-3
I 1 I I I U I I
APPENDIX B
I I SOILS AND MATERIALS
I I 1 I I I I I 1
APPENDIX B
SOILS AND MATERIALS
(a) General
The road pavement is composed basically of two layers the surface
course and base course overlaying a compacted subgrade or embankment
The sources and volumes of the surface course and base course materials
are indicated in the Materials Utilization Diagrams included as Figures B-i
through B-4
(b) Subgrade
The subgrade soil consists primarily of aeolian fine sand except
for approximately 36 kilometers of the road for which the subgrade is a pan material consisting of clay In the pan areas special 1 Om thick
embankments were constructed with plasticity and fineness control of material
The subgrade and embankment soils were compacted to a minimum of 90
of modified AASHTO compaction The measured mean relative compaction
obtained immediately after compaction of the subgrade was 935 of the modified AASHTO maximum density
(c) Base Course
The majority of the base course materials are derived from aeolian deposits ie fine sand with a trace to some silty clay The
remaining base bourse approximately 15 of the total was obtained from pits having a large component of gravel The 15cm thick base
course is bank run or blended material for which the amounts of fines
and plasticity were controlled The base course materials were obtained from 123 base borrow pits and compacted to a minimum 95 of modified AASHTO density The measured mean relative compaction
directly after construction was 96 of the modified AASHTO maximum
density
(d) Surface Course
The 15cm thick surface course is well graded sandy gravel with
some silty clay fraction The materials for the road segment from
Kilometer 0+000 to Kilometer 173+000 are derived from calcrete deposits
while the materials for the remaining portion are derived from weathered
3-1
bedrock The surface course has controlled gradation plasticity and
durability to obtain sufficient strength to reduce ravelling to a minimum
particularly during the dry season and to resist the wear of traffic
Surface course materials have been obtained by screening crushing
and blending materials from 9 borrow areas and were compacted to a
minimum of 98 of modified AASUTO maximum dry density The comshy
posite properties for each borrow pit are indicated in the Average
Gradation Ourvesincluded as Figures B-5 through B-13 Directly
after construction of the surface course the measured mean relative
compaction was 100 of the modified AASHTO maximum density
B-2
N A TA K A ZUN GU LA RO0A D 70 033 90 CC
00 00 0 0 0+I 03- 30L K
0 I I
M 3 100 0002L [2
_
MATERIALS UTILIZATION DIAGRAM Fiure -I
NATA - KAZUNGULA ROAD
+--- 121
y T
MATERIALS UTILIZATION DIAGRAM Fgure R-Z
NAT A - KAZ UN GULA ROAD
07 2 230K300 220 220 232 252
I 3 3 2
MATERIALS UTILIZATION DIAGRAM Figure 2-3
itLT-m
CHOBE RIVER BY-PASS ROAD 02__ Q___ 0 60 40 - 0 50 0 i
-F-CEL
-Tl J-II II
MATERIALS UTILIZATION DIAGRAM Figure B-4
3 SIEVE ANALYSIS SMI~ia VIII
IY UN In~ VI STAISRS SIEVE NUMBfh SUE9 - usuLguNuus O-- aoIiUl- I1
11I a to to 0 i oIIIa lf I
II
SN Cu ye B
II N
o
i B _ ___~ N II 1 l s - Curi e At-
I 2 I a 6 4 2 i5 4 3 2 a -
GRAIN I IZE MILTERS
SILT AND CLAY SOILS GRAVEL SAND
I NUMBE1RSAMPLE DEPTH LL KIE IPTIONIELEV P1 ECIT
A Composit 38 19 CrusherAverage Runof 192 samples
B Composit 33 17 Surface Course Blend asAverage of 236 samples placed
MDD 1960 kgm Los Angeles Abrasion = 42 Average Blend Added 15=
REPUBLIC OF BOTSWANA TI PPETTS-ASSETT-NcCAIThY-STRATTOU MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY BOTSWANA-ZAMBIA GRAIN SIZE DISTRIBUTION BY DmArTE Q76HIGHWAY j PIT 2A DOi FIGURE B-5
E ANLYSISSIEVE NALYSIS NI
OPEING - In jS PhIMS-SEVE iNRh3EN son - MILLIMETER
V11 6plusmn SSIEVE
6 i S 0-4 0 10 miUS) 3055 3 001mesa a
9 I I I - -
Crye B
S bull
1TCrii INN20 1 e A- NI deg I FIK 46591 2 a045 4 2 1115 5 2 6
GRIISZ IN MILLIMETERS
COACE iE NtIUM FI SILT AD CLAY SOILSGRAVEL SAND
5r IBSAMPLE DEPTH ELEV LLP1
A Composite 28 10 Crusher Run Average of 229 samples
B Composite 28 11 Surface Course Blend as Placed Average of 58 samples
2050 kgm3 Averaoe Blend Added shy
TIPPETTS-ASETT-NCCARTIY-STATTONREPUBLIC OF BOTSWANA NEW YORK NY
MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS
BRAIN SIZE DISTRIBUTION BY NCZ jAATE9 876BOTSWANA-ZAMBIA
HIGHWAY PIT 14 amp 14A OWN FIGURE B-6
i
S ANALYSIS 01 ANALYSIS
SIEVE - n -IIII- SIZ-MII- - IN i
It a s 1
Ue a -- e B
- 1 -I-[_I - I I I
6l51 10 8 $514 1 O is 05I I 21 8GANSZNILMTR OA RE Filo 9OA-1i 1DI UM F log S ILT AND CLAY SO ILS
GRAVEL nSAND
E--l I UNEASMPLEDEPlTH ELEV LL P1 KWKIPTION
A Composite 36 19 Crusher Run
Average of 116 Samples
B Composite 36 15 Surface Course Blend Average of 138 samples
H GHWA E SA 18 SILT ANDURCLA-SIL
3kgm Los Angeles Abrasion 28
Av agau Pnd AAd = 907 ITI UETT$-ABBTT-NcentcentARTNY-STRATTON
NEW YORK NY
REPUBLIC OF BOTSWANA
MINISTRY OF WORKS amp COM24UNICATIONSIT NINEERS1
I I MGIELI7 I 1 8AIIGIWAE
I
4
SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU
V 1 Oe 001l
- -r--I-I -- I
S E- -IN S
KI zz7llfl$zIIIti z I
low560
20
2
IGRAIN SIZE IN MILLIMETERS
COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS
GRAVEL SAND
SAMP DEPTH ELEV L P1 0NBERIIPTI
A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples
B Composit( 28 13 Surface Course Blend as Placed
Average of 85 samples
Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA
REPUBLIC OF BOTSWANA TI EfTTS-AIETT-NCARTY-STRATTOi ITTqTPI yen O WOVQ A n rn WTraTTn~lz ENGINEERS NEW YOlK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8
-D IUR IB
II SIEVE ANALYIIS 1411 I LYIlMll
[urn $11min - I I ITUSE IVV I - mampINimums1 -l0 n 001
a1 i 4 is s 0 aL w I 2 0665S a a 4 i 0i
-7sl
96---
I RI IE IN M IEER
CfliEI FIN g o au SIT SILFIN M40 5C o432 14593 ry B6
ver 7 samples
NUMBE NERPI
Ay I GRAIN SIZE IN MILLIMETR
5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND
A Q A- Aii dd d~A
IMUBEIRIIIIPIi
3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables
B Composit 26 13 Surface Course BlendU as Placed
Average of 79 samples
AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =
REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9
SIEVE ANALYSIS IMmv na awLYoia
SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I
I- 01 001
e---__
Ir1 -NIP_]
20
OA
$05 9 2
E
I
86543
I
7tN
2 1 65
_OAlEED t
5 2
FN
I
GRAIN SIZE IN MILLIMETERS
1 111I
NU BE GRAVEL
COARSE
I
MEDIUM
I SAND
FSILT AND CLAY SOILS
SAMPLE4 DEP EEY 1 SCBI1PTIORI
A
B
Composite
Composite
38
26
17
13
Crusher Run Basaltic Aggregate
Average of 176 samples
Surface Course Blend -s Placed Average of 58 samples
Average MDD = 2135 kgm Los Angeles Abrasion = 38
Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY
WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971
3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10
SIEVE ANIALYSIS lNVINI1111 ANALYSIS
I EV OPE IN - INI8 TOSIIEENN1-MLII
I
I - - i ii 0
I GRI SIZEto N OILS 1
I ANDLI IS
G VELIZE I
IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL
-APL ESN
DEPTH ELEY LL PI DESCRIPTIONNUSMBE
3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples
B Composite 26 13 Surface Course Blend as Placed Average of 58 samples
Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34
Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY
BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11
___ I
SIEVE ANALYSIS W11 ANKEm SIS
SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS
01 001
sodego
i i
U Ae
6 559 2 a65 3 2 1 6532 S
II GRAIN SIZE INMILLIMETERS
=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL
GRAVEL SN
I SAMPE DEPTH ELEV LL P)S DESCRIPTION
A omposite 28 10 Crusher Run
SAverage of 72 samples
B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples
Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20
REPUBLICUINISTRY 0OF OF
BOTSWANA WORKS amp COMMUNIGTIONS
TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12
I
SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM
-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U
I _
I1li
Ia _ Cu ve
N IC A11
IQI II
1 IG S IIIMETE
I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND
SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION
A Composite 34 15 Crusher Run Average of 74 samples
B Composite 29 12 Surface Course Blend as Placed
Average of 42 samples
MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15
REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA
ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N
NEW sy cKA
YORK NYT E-2 5 1 7 7
HIGHWAY PIT 32A Mwe FIGURE B-13
I I I I I I I I
APPENDIX C
I WATER WELL LOCATIONS
I I I I I I I I I
APPENDIX C WATER WELL LOCATIONS
WELL NO 3
Location Km 171 Lt of centerline 200 meters
Drill - 6 x 392
Ream - 8 x 92
Case - 6 x 84
Test - 24 Hours - 276
Pump 6000 G P H
Total depth - 392
Pumped at 150
24 Hr Drawdown - 3
Water Good
WELL NO 4
Location Km 175 - Lt of centerline 100 meters
Drill - 6 x 380
Ream - 8 x 82
Case - 7 x 82
Test - 276
Pump 1800 G P H
Total depth - 380
Pumped at 200
Drawdown 24 Hr - 100
Water Good
WELL NO 5 (Govt No 2436
Location Km 178 - Lt of centerline 115 meters
Test -276
Pump - 1400 G P H
Total depth - 160
Pumped at 140
24 Hr Drawdown - 60
Water Good C-1
WELL NO 6
Location Km 183 - Lt of centerline 60 meters
Drill - 6 x 436
Ream - 8 x 86
Case - 7 x 86
Test - 276
Pump - 500 G P H
Total depth - 436
Pumped at 250
24 Hr Drawdown - 150
Water Good
WELL NO 7 - (Govt No 2435)
Location Km 189 - Rt of centerline 100 meters
Clean amp Test
Pump - 6000 G P H
Pumped at 140
24 Hr Drawdown - 10
Water Good
WELL NO 14
Location Km 252 - Lt of centerline 100 meters
Drill - 6 x 250
Ream - 8 x 53
Case - 6 x 53
Test - 276
Pump - 6000 G P H
Total depth - 250
Pumped at 150
24 Hr Drawdown - 6
Water Good
C-2
WELL AT KM 256 MAINTENANCE FACILITY NO 3
Location Km 256 - Lt of centerline 200 meters
Depth - 100 feet
Water Rest Level - 42 feet
Depth Pump Set - 70 feet
24 Hr Test - 1800 G P H
WELL NO 15
Location Km 245 - Rt of centerline 40 meters
Drill - 6 x 260
Ream - 8 x 54
Case - 54
Test -276
Pump - 1500 G P H
Total depth - 260
Pumped at 200
24 Hr Drawdown - 140
Water Good
WELL NO 16 Location Km 236 -Rt of centerline 30 meters
Drill - 6 x 250
Ream - 8 x 22
Case - 6 x 22
Test - 276
Pump -6000 G P H
Total depth - 288
Pumped at 150
24 Hr Drawdown - 10
Water Good
C-3
WELL NO 17
Location Km 224 - Rt of centerline 30 meters
Drill - 10 x 89
Case - 8 x 85
Drill- 8x 43
Drill - 6 x 38
Case -6 x 132
Test - 276
Pump -2000 G P H
Total Depth - 170
Pumped at 100
24 Hr Drawdown - 11
Water Good
WELL NO 18
Location Km 217 - Lt of centerline 200 meters
Drill -i0 x 70
Case - 7 x 70
Drill - 7 x 52
Drill - 6 x 88
Case - 6 x 122
Test - 276
Pump 2400 G P H
Total depth - 210
Pumped at 200
24 Hr Drawdown - 140
Water Good
C-4
WELL NO 19
Location Km 213 - Lt of centerline 100 meters
Drill - 10 x 44
Case - 8 x 40
Drill - 8 x 76
Drill 6 x 130
Case - 6 x 120
Test - 276
Pump - 6000 G P H
Total depth - 210
Pumped at 60
24 Hr Drawdown - 10
Water Good
WELL NO 20
Location Km 143 - Rt of centerline 100 meters
Drill - 10 x 240
Case - 7 x 220
Drill -6 x 378
Case - 6 x 240
Case - 5 x 240
Test - 276
Pump -1500 G P H
Total depth - 618
Pumped at 460
24 Hr Drawdown - 105
Water slightly salty to taste but drinkable
C-5
WELL NO 23
Location Km 139 - Lt of centerline 100 meters
Drill - 12 x 290
Place amp Extract Case - 10 x 290
Drill - 8 x 30
Drill - 6 x 40
Case - 8 x 290
Case - 6 x 320
Test - 276
Pump - 1200 G P H
Total depth - 360
Pumped at 330
24 Hr Drawdown - 120
Water salty
WELL NO 24
Location Km 135 - Lt of centerline 500 meters
Drill - 12 x 270
Drill - 10 x 10
Case - 10 x 270
Drill -8 x 30
Case - 8 x 290
Case -6 x 310
Case - 5 x 320
Test -276
Pump -4000 +G P H
Total depth - 320
Pumped at 270
24 Hr Drawdown - 2
Water Salty
C-6
I
5
WELL KM 205 MAINTENANCE FACILITY NO 2
Location Km 105 - Lt of centerline 40 meters
Depth - 302 feet
~ Water Rest Level - 82 feet
Depth Pump Set - 150 feet
48 Hr Test - 3000 + G P H
WELL NO 26
Location Km 82 - Lt of centerline 100 meters
Drill - 12 x 145
5 -8 x145
Drill - 8 x 23
-Case
I Drill - 7 x 10
Case - 7 x 168
I Case - 6 x178
Test - 276
Pump - 1200 G P H
Total depth - 306
I Pumped at 140
24 Hr Drawdown - 35
I Water Good
C
I 0-7
WELL NO 27
Location Km 77 - Lt of centerline 100 meters
Drill - 12 x 174
Install amp Extract Case - 10 x 174
Case - 8 x 174
Drill - 9 x 68
Drill - 8 x 64
Case - 7 x 242
Case - 6 x 306
Test - 276
Pump - 4000 + G P H
Total Depth - 306
Pumpe at 240
24 Hr Drawdown - 0
Water Good
WELL NO 28- (Govt No 2465)
Location Km 63 - Rt of centerline 100 meters
Clean amp Extract Case - 300
Ream - 10 x 98
Ream - 8x 27
Ream - 6 x 12
Case - 8 x 98
Case - 6 x 125
Test - 276
Pump - 1000 + G P H
Total depth - 137
Pumped at 130
24 Hr Drawdown - 33
Water Good
C-8
WELL NO 30
Location Km 47 - Rt of centerline 400 meters
Drill - 12 x 132
Case - 10 x 89
Install amp Extract Case - 12 x 43
Drill - 10 x 117
Case - 7 x 242
Drill - 6 x 183
Install amp Extract Case - 6 x 408
Test - 276
Pump - 1000 G P H
Total depth - 408
Pumped at 160
24 Hr Drawdown - 77
Water Salty
WELL NO 31
- Lt of centerline 200 metersLocation Km 44
Drill - 12 x 110
Case - 10 x 100
Drill - 10 x 142
Case 8 x 142
Drill - 8 x 250
Case 7 x 392
Drill - 6 x 78
Test - 276
Pump - 3000 G P H
Total depth - 502
Pumped at 160
24 Hr Drawdown - 44
Water Salty
C-9
WELL NO 32
Location Km 42 - Lt of centerline 100 meters
Drill - 12 x 108
Case - 10 x 108
Drill - 10 x 212
Drill - 8 x 120
Case - 6 x 340
Case - 8 x 182
Test - 276
Pump - 3000 + G P H
Total depth - 448
Pumped at 160
24 Hr Drawdown - 20
Water Salty
WELL NO 34
Location Km 35 - Lt of centerline 200 meters
Drill - 12 x 230
Install amp Extract Case - 10 x 230
Drill - 8 x 30
Case -6 x 260
Drill - 6 x 160
Case -5 x 324
Case - 8 x 20
Test - 276
Pump -1000 + G P H
Total depth - 420
Pumped at 150
24 Hr Drawdown - 100
Water Salty
C-10
WELL NO 36
Location Km 7 N E along old track from Km 63
Drill - 12 x 180
Case - 10 x 180
Drill - 10 x 231
Case - 8 x 211
Drill- 8x 254
Case - 6 x 245
Test -276
Pump -4000 + G P H
Total depth - 265
Pumped at 180
24 Hr Drawdown - 0
Water Good
C-11
I 3 I 1 I I I I B j APPENDDC D
SYNOPSIS 0 KEY CORRESPONDENCE
3 DURING CONSTRUCTION
I pound I I I 1 I I
On September 1 1973 the Contractor confirmed the
estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts
On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project
On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be
obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated
On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine
On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation
On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension
On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension
On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval
On October 15 1973 the Engineer returned the construction progress schedule for correction
On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim
D-I
On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor
On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project
On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25
On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter
On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents
On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract
On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised
On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading
On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule
On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request
On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period
D-2
On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report
On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material
On August 19 1974 the Contractor submitted an updated construction progress schedule for approval
On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases
On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor
On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor
On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project
On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course
On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country
On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course
On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions
On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule
On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress
D-3
On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract
On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana
On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor
On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion
On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations
On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases
On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season
On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees
On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections
On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project
On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course
On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project
On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract
D-4
October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request
On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor
On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620
On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project
On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y
completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense
On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted
On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project
On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim
On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic
On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor
On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976
D-5
On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time
On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares
On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material
On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500
On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor
On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula
On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana
OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected
On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road
On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road
Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10
On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued
On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced
On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091
On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091
Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued
D-6
I I IUUU U U UU I U
E PROJECT PHOTOGRAPHS
I IIIU U I
I Crushing Plants Surface Course
Pit 2A
Pug Mill Blending Surface Course
Pit 25A
II Surface Course
Pit 25A
UURYPTOERTOSE Pug Mil Blending
Road Reserve Bush Clearing
Km 242
U
Embankment Construction Km 287
IN
Road Construction Water Supply
Km 189
ROADWAY UNDER CONSTRUTION
II
E-2
Stockpiling Material Base Course
Special Embankment Construction Km 232
Watering of Embankment Km 257
ROADWAY UNDER CONSTRUCTION E-3
Culvert Assembly
Twin Culvert with Sand-Cement Pitching
Multiple Culverts with Sand-Cement Pitching
CULVERT INSTALLATIONS E- 4
AT Km 25
AT Km 194
Emergency Landing Strip Kra 2605
FINISHED ROADWAY E- 5
AT Km 286
AT Chobe By-Pass Junction Km 297
I Chobe By-Pass Road Near Ngoma Bridge
E-6FINISHED ROADWAY
II STAFFING Excluding the mobilization and demobilization periods the major conshy
struction efforts took place during the calendar years 1974 1975 and 1976
A summary of the project staffing is presented in Table 2
TABLE 2
AverageMaximum Staffing Levels
Contractors Staff Engineers Staff
YearSource US Botswana TCN Code 941 US Botswana TCN
1974 17 232 2 22 4 11 9 1975 18 302 3 43 4 12 9
1976 15 290 3 40 4 13 7
Maximum 20 359 5 49 4 14 9
A paving specialist visited the Project in December 1973 and une 1974
in connection with proposals for upgrading the Project and again in March 1975
in connection with selection of material for the surface course
A partner from the Consultants home office made periodic visits to the
Project sites
III TRAINING
The Contractor trained Botswana Staff as drivers equipment operators
and oilers surveyors soils technicians mechanics helpers stewards and
maintenance workers
The Engineer trained Botswana Staff as soils technicians surveyors
drivers draftsmen and office clerical workers
IV CONSTRUCTION EQUIPMENT
In compliance with a requirement of the Contract Documents the Conshy
tractor presented a schedule of major plant and equipment to be used on the
Project Some adjustments were made to the listing as the job progressed
-4shy
Advances for the purchase of new items (materials construction plant
equipment tools spare parts maintenance supplies and buildings furniture
and equipment for the Contractors and Engineers camps) totaling U S
$124443700 and local currency Rand 225000 were made available to the
Contractor as provided for by the Contract Documents Reimbursement of
these advances were made in January1974 in accordance with the Contract
requirements
The major items of construction and shop equipment imported by the
Contractor for use on the project are listed in Appendix A
V MATERIALS UTILIZED
A SOILS
The formation consists of two layers the surface and base courses
placed on a compacted subgrade or embankment Base course materials were
obtained from 123 borrow pits along the roadway Surface course materials
which required processing were obtained from 9 borrow areas Appendix B
contains the Material Utilization Diagrams which show the sources of these
borrow materials and their utilization along the road Also included in Appendix
B are the Average Gradation Curves of the processed surface course materials
B WATER
Water for construction was obtained from 24 water wells drilled by the
Contractor Appendix C contains information on locations depth and yields
of the wells
VI PROTECT HISTORY
A GENERAL The engineers inspectors and materials technicians employed by TAMS
systematically inspected construction operations and sampled and tested mashy
terials being incorporated in the work to ensure compliance with contract reshy
quirements Each month a determination was made of the work accomplished
-5shy
and eligible for payments and pay quantities for the Contractors monthly
progress estimates were certified
The Engineers survey parties verified reference points established
by the Contractors personnel for vertical and horizontal control points estabshy
lished along the preliminary base line and verified limits of bush clearing
flagged by the Contractor After the final line was staked detailed cross shy
sections were taken for computation of pay quantities Check measurements
were made periodically to verify the construction performed by the Contractor
As sections of the Project were completed final measurements were taken and
as-built plans prepared
Periodic progress reports and charts were prepared for the Government
and AID throughout the construction phase
After substantial completion of the works in January1977 a final inshy
spection of the project was made On January 19 1977 a Certificate of
Completion was issued by the Engineer As required by the Contract the
six-month maintenance period commenced
A synopsis of the more important correspondence initiated or received
by the Consultant in connection with administration of the Contract is included
in Appendix D
B SEQUENCE OF EVENTS
During late July and early August1973 the Contractor began to mobilize
personnel at Pandamatenga preparatory to commencing construction of the main
camp facilities
A sub-contract for construction of the engineers facilities atd some
items of the Contractors camp was negotiated between Grove International
and Botzam Services of Livingstone Zambia During September 1973 the subshy
contractor mobilized men equipment and material at Pandamatenga and comshy
menced construction on main camp housing units
On September 20 1973 the Contractor having been denied access
through the Botswana-Rhodesia Border at Pandamatenga for mobilizing equipment
material and supplies decided to shift the main camp site to the vicinity of
Kazungula The camp site was established at Kilometer 3+400 on the Chobe
River By-Pass road approximately 8 Kilometers east of the village of Kasane
3 -6shy
During late October construction of housing shops offices wareshy
houses and ancillary facilities commenced at the relocated main camp site
The camp facilities were substantially completed by the end of March 1974
Temporary satellite camps were later established at Pandamatenga at Kilometer
105 and at Kilometer 63 on the Nata-Kazungula segment of the project
Mobilization of construction equipment personnel material and supplies
began in early October 1973 and continued through April 1974
During the remainder of 1973 the construction efforts were concentrated
on construction of the main camp site A small amount of clearing grubbing
and earthwork was accomplished on the Chobe River By-Pass Road and on the
northern end of the Nata-Kazungula road
1 Principal Construction Accomplishments During 1974
Clearing and Grubbing - 5366 hectares completed between
Kilometer 297 and Kilometer 169 on the Nata-Kazungula segment
of the project
- Earthworks - excavation and borrow quantities came to a total
of approximately 506500m with the major portion of this work
performed between Kilometer 297 and Kilometer 196 on the Nata-
Kazungula segment of the project
- Pipe culverts - installed 59 pipes ranging in size from 18 to 60
diameter for a total of 1129 linealmeters between Kilometer 297
and Kilometer 196 on the Nata-Kazungula segment and from
Kilometer 0+000 to Kilometer 3+500 on the Pandamatenga Access
Road
Base Course - approximately 113600m placed between Kilometer
297 and Kilometer 197 on the Nata-Kazungula segment and from
Kilometer 0+000 to Kilometer 2+350 on the Pandamatenga Access
Road
Surface Course - approximately 19000m was placed between
Kilometer 292 and Kilometer 273+500 on the Nata-Kazungula segment
5-7shyI
2 Principal Construction Accomplishments During 1975
- Clearing and Grubbing - 634 hectares completed between
Kilometer 169 and Kilometer 2+000 on the Nata-Kazungula
segment between Kilometer 0+000 and Kilometer 14+000
on the Chobe River By-Pass segment and from Kilometer 2+350
to Kilometer 5+275 on the Pandamatenga Access Road
- Earthworks - excavation and borrow quantities came to a total
of 379145m3 with the major share of this work performed
between Kilometer 196 and Kilometer 49+000 on the Nata-
Kazungula segment and on the Pandamatenga Access Road
- Pipe Culverts - 69 pipes were installed ranging in size from
18 to 60 in diameter for a total of 1308 lineal meters
between Kilometer 200 and Kilometer 65 on the Nata-Kazungula
segment and from Kilometer 0+000 to Kilometer 5+200 on the
Pandamatenga Access Road
Base Course - approximately 219000m was placed between
Kilometer 197 and Kilometer 57 on the Nata-Kazungula segment
and on the entire 52 kilometers of the Pandamatenga Access
Road
Surface Course - approximately 177 000m of surface material
placed between Kilometer 273 and Kilometer 130 on the Nata-
Kazungula segment
3 Principal Construction Accomplishments During 1976
- Clearing and Grubbing - completed 2188 hectares between
Kilometer 2+000 and Kildmeter 0+000 and between Kilometer
297+300 and Kilometer299+600 on the Nata-Kazungula segment
and between Kilometer 14+000 and Kilometer 65+000 on the
Chobe River By-Pass segment which completed this item of
work
- Earthworks - excavation and borrow quantities came to a total
of 235092m which completed this item of work
-8shy
Pipe Culverts - 36 pipes were installed ranging in size from
18 to 48 diameter for a total of 973 lineal meters The
major share of this work was performed on the Chobe River
By-Pass segment
Base Course- 206120m3 was placed on the Nata-Kazungula
road between Kilometer 57+600 and Kilometer 0+000 and between
Kilometer 297+300 and Kilometer 299+588 and on the Chobe River
By-Pass road between Kilometer 0+000 and Kilometer 65+048
Surface Course - 260878m placed between Kilometer 130+000
and Kilometer 0+000 on the Nata-Kazungula road and between
Kilometer 0+000 and Kilometer 65+048 on the Chobe River By-Pass
Road
4 Principal Construction Accomplishments During 1977
The Contractor continued to work on final clean-up and corrective
work in accordance with the punch list provided by the Engineer On January
19 1977 the Completion Certificate was issued with a list of outstanding
deficiencies attached These were rectified by the Contractor during the
early part of the six-rnnth maintenance period The Contractor in compliance
with the Engineers instructions installed 10 additional 18 diameter CMP
culverts on the Nata-Kazungula road between Kilometer 236 and Kilometer 238
Two additional pipes were installed at Kilometer 6+540 on the Chobe River
By-Pass Road Rock was placed on sand fill slopes and at culvert inlets and
outlets to guard against erosion on numerous sections of the Nata-Kazungula
Road and Chobe River By-Pass Road The Contractor maintained the project
until July 19 1977 when a Certificate of Maintenance was issued
C PROTECT SCHDULING AND DELAYS
On October 5 1973 as required by Clause 12 Part II-Conditions of
Particular Application of the Conditions of Contract - the Contractor submitted
his proposed construction schedule for the project The schedule was returned
to the Contractor on October 16 1973 for modifications It was resubmitted
and finally approved on March 19 1974
-9shy
In October 1974 the Contractor presented a revised construction schedule
It was not approved by the Engineer who informed the Contractor that the
actual rate of progress was far below that projected by the schedule and reshy
quested an explanation as to what steps were contemplated to bring progress
on the project up to schedule
On November 6 1974 the Contractor again presented a revised conshy
struction schedule reflecting a completion date beyond the contract period for
completing the Project The Contractor made reference to conditions which
had allegedly caused delays to progress on the Project and stated that claims
would be presented requesting time extension for completion of the Project
The revised schedule was not approved pending presentation by the Contractor
of all supporting details
By the end of December 1974 the Contractor had completed 29 percent
of the work then specified in the Contract as modified by ten change orders
This compared with 55 percent scheduled to be completed according to the
approved progress schedule
On February 27 1975 the Engineer notified the Contractor that progress
was continuing to fall further behind the approved construction schedule and
requested the Contractor to submit in writing his plans for bringing progress
up to schedule in compliance with pertinent provisions of the Contract On Tuly
24 1975 the Contractor again presented a revised construction schedule reflectshy
ing a completion date of August 31 1976 This schedule was accepted by
the Engineer in September 1975 with the provision that acceptance of the
schedule should in no way be construed as an approval for extension of time
for completion of the project
By the end of 1975 the Contractor had completed 63 percent of the work specified in the contract as compared with 73 percent projected in the revised
construction schedule
On March 11 1976 the Contractor presented the 6th revision of the
construction schedule reflecting a completion date of December 31 1976
This schedule is included herein as Figure 2 The schedule was accepted by
the Engineer on March 24 1976 with the provision that acceptance of this
schedule should in no manner be construed as an approval of extension of time
for completing the project
-0shy
LEGEND CONSTRUCTION PROGRESS CHART BOTSWANA-ZAMBIA HIGHWAY
WORK ELEMENT lt I
MOBILIZATION 7 T z ltgt 7gtlt74gtlaquo 7
GENERAL gt gt lt lt+ $ lt2740gt77
SURVEYS
AND SITE CLEARING
PREPARESUGRADE lt gt
7+47
I EARTHWORKS ~kgt1 E ~gt07 gt0gt0 ~laquolt gtgt~lt7laquogt 77gt
BASE COURSE
SURFACE COURSE ~lt 7ltgtlaquoD4
+4 7iA
gt
ltgt7 77 gtlt4lt
P
DRAINAGE I-shy___MAINTENANCEI I _ _ _ _
FACILITIES - -gt 7 7 7 7lt7 ltgttVViV77W7vV~7~
HIGHWAY HARDWARE lt
CHANGE ORDERS AND I
DAY WORKS lt
TOTAL
VII FINANCIAL SUMMARY
As indicated in Section I-B of this report the funds available (from
AID) for the construction of this project were in the amount of U S $16600000
The disbursements of monies for the construction and construction supervision
through May 31 1978 are summarized in Table 3 along with the original esshy
timated amounts for comparison
TABLE 3
Disbursements Through Original Estimated
May 31 1978 Amounts
US $ RandPula US $ RandPula
Construction Costs (Grove International See Table 5) 882317486 310970881 897784200 316082500
Change Orders (From Table 1) 4276898 - 95829606
Supervision of Construction (TAMS) 129796299 - 135468100 -
TOTALS 1016390683 406800487 1033252300 316082500
From original contracts and supplements through May 31 1978
Table 4 presents a summary of final construction costs including
those by Contract Pay Items disbursed to the Contractor (Grove International)
The above listed costs do not include back charges on the loan which
charges are not available to the Engineer
The Contractor has submitted a series of claims requesting extensions
of time and reimbursement for claimed additional costs These claims are
currently under review by the Engineer A supplemental report will be issued
by the Engineer after the Contractors claims have been resolved and will
include any additional costs and time extensions awarded to the Contractor
Assuming an average rate of exchange of 1000 Pula or 1000 Rand
equal to 1350 U S Dollars and neglecting bank charges the approximate
loan balance as of May 31 1978 was U S $940000
-12shy
An average conversion rate of exchange has been used to estimate
the loan balance since the actual rate varied and actual draw-down figures
are not available to the Engineer
At the time of Project commencement the currency of Botswana was
the Rand In August 1976 the Botswana Government changed over from the
Rand to the Pula as the official currency During the course of construction
local currency disbursements have been made to the Contractor in both Rand
and Pula
-13shy
--- =1m =- M Il-- M=M m -
Sheet 1 of 4TABLE 4 - SCHEDULE OF FINAL CONTRACT QUANTITIES
Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount RandPula
No Description Measure Final Quantities US $ RandPula US $
101 Mobilization Lump Sum 10000 57077200 58360600 -0shy
201 Engineers Staff Housing 2-Bedroom House Each 1 3333 1300000 272100 1300000 272100
202 Engineers Staff Housing 3-Bedroom House Each 3 10000 1400000 339300 4200000 1017900
203 Engineers Staff Housing Technicians House Each 4 10000 650000 130100 2600000 520400
204 Engineers Staff Housing Jr Staff Housing Each 16 10000 112500 19600 1800000 313600
205 Moving amp Re-erection of Engineers Staff Housing Each move NOT APPLICABLE
206 Engineers Main Office Lump Sum 10000 1800000 306300
207 Engineers Main Laboratory Lump Sum 10000 2600000 407700
208 Moving amp Re-erection of Engineers Main Office Each Move NOT A P L I CA B L E and Main Laboratory
209 Engineers Forward OfficeLaboratory Each 2 10000 766300 1532600 -0shy
210 Additional Surveying Office Laboratory and Prime Cost 69809 1500000 1047146 -0-Communication Equipment
211 Contractors Expenses and Profit on Percent 69809 25 261787 -0-Prime Cost Item 210
212 Provide and Maintain Vehicles for ihe Engineers Staff Vmonth 304 Vmonth 24000 17100 7296000 5198400
301 Basic Survey and Setting Out km 370590 km 48500 13400 17973600 4965905
302 Clear Heavy Bush Hectare 514075 ha 23200 7500 11926540 3855563
303 Cleat Light Bush Hectare 70053 ha 15500 5000 10858215 3502650
304 Clear Grassy Hectare 1775 ha 12400 4000 2201000 710000
401 Prepare Sand Subgrade for Embankment m2 3335443 m 2 011 006 36689873 20012658
402 Prepare Clay Subgrade for Embankment m2 408450 m 2 023 011 9394350 4492950
501 Construct Standard Embankment i3 865895 m3 117 047 101309715 40697065
3502 Construct Special Embankment m3 254779 m 196 074 49936684 18853646
030 384035 129450503 Excavate Unsuitable Material m3 4315 m3 089
601 Base Course m3 538854 m3 310 120 167044740 64662480
602 Overhaul of Base Course Material m3km 46462 m3kr 028 010 1300936 464620
701 Remove Overburden from Surface Course Borrow Pits m3 260056 m3 060 016 15603360 4160896
702 Surface Course m3 457260 m3 545 210 249206700 96024600
703 Haul of Surface Course Material m3kmn 6572330 m3kr 0102 0034 67037766 22345922
TABLE 4 (Continued) Sheet 2 of 4
Item No Description
Unit of Measure
Total Revised Final Quantities
Contract Unit Price US $ RandPula
Final Revised Contract Amount US $ RandPula
801
802
803
Excavation and Backfill for Cuiverts up to 48 inches in diameter
Excavations for foundations of Culverts 48 inches and over
Backfilling culverts 48 inches and over
m3
m3
m3
558512 m3
94946 m3
322010 m3
480
270
490
330
140
360
2680858
256352
1577849
1843090
132923
1159236
804 Nestable Galvanized Corrugated Metal Pipe 18 inches in diameter 14 USSG
PIPE LM 249963 LM 4380 820 10948379 2049697
END SECTIONS Each 388 each 6660 225 2584080 87300
805 Nestable Galvanized Corrugated Metal Pipe 24 inches in diameter 14 USSG
PIPE LM 28104 LM 5560 1100 1562582 309144
Supply additional 24 inch diam Pipe 114035
END SECTIONS Each 34 each 10200 800 345800 27200
Supply additional End Sections 30600
806 Nestable Galvanized Corrugated Metal Pipe 36 inches in diameter 12 USSG
PIPE LM 19506 LM 10500 1600 2048130 312096
END SECTIONS Each 28 each 27600 2100 772800 58800
807 Nestable Galvanized Corrugated Metal Pipe 48 inches in diameter 12 USSG
PIPE LM 11522 each 13500 2200 1555470 253484
Supply additional 48 inch diam Pipe 10480
END SECTIONS Each 10 each 76200 4300 762000 43000
808 Nestable Galvanized Corrugated Metal Pipe 60 inches in diameter 10 USSG
PIPE LM 48768 LM 20400 2700 9948672 1316736
Supply additional 60 inch diam Pipe 47510
809
810
811
Excavate inlet and outlet drains mitre ditches and roadway ditches
Sand-cement Pitching
Clay slope Protection
m3
m3
m2
477781 m3
276769 m3
NA
110
2300
030
3000
100
525559
636569
-0-
143334
830307
-0shy
Supplied but not installed
mi -blN mN -m~ m ml m min nmlW arm~ nn- a a a a1 al a
TABLE 4 (Continued) Sheet 3 of 4
Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount No Description
812 Supply Nestable Galvanized Corrugated
Metal Pipe 18 inches in diameter 14 USSG
PIPE
END SECTIONS
901 Construct Maintenance Facility Complex
902 Water Pump
903 Contractors Expenses and Profit on Prime Cost Item 902
1001 Road Signs
1002 Guide Posts
1003 Kilometre Posts
Dayworks
TOTAL-SCHEDULE OF QUANTITIES
a
0) CO I CO 2
TAMS Staff Hotel Accommodation
Air Conditioners TCN Houses
CO 3
CO 4
NA (Progress Payment Permanent Material)
Additional TCN Housing
SUB-TOTAL
CO 5 POL Escalation Cost
CO 6 POL Escalation Cost
CO 7 POL Escalation Cost
SUB-TOTAL
LESS OVERPAYMENT
TOTAL POL ESCALATION COST
CO 8 Interim Allowance (Wage)
CO 9 Wage Escalation Cost
SUB-TOTAL
LESS OVERPAYMENT
TOTAL WAGE ESCALATION COST
Measure
LM
Each
Lump Sum
PC Sum
25
Each
Each
Each
As directed
Each
Final Quantities
238 LM
0 each
98
284 each
900 each
182 each
100
100
100
NA
6
100
100
100
100
100
US $
3400
6700
8520
As Billed
650000
As Shown
As Shown
As Shown
As Shown
As Shown
RandPula
900000
1000
1450
1500
130100
US $
809200
-0-
13014800
-0-
-0-
2419680
-0-
-0-
5999421
882317486
376898
3900000
4276898
RandPula
-0shy
-0shy
7308700
255223
63806
284000
1305000
273000
-0shy
310970881
842138
5307
780600
1628045
575601
1815344
77277517
79668462
1661539
78006923
297802
16022556
16320358
125720
16194638
TABLE 4 (Continued)
Item No Description
Unit of Measure
Total Revised Final Quantities
Contract Unit Price US $ RandPula
Sheet 4 of 4
Final Revised Contract Amount US $ RandPula
CO 10
CO 11
CO 12
Road Reserve cleared way Chobe River By-pass (included under items 302 303 and 304)
Importation Additional Sheeps foot roller (included under item 101)
Minor realignment of roadway at Nata
TOTAL CONSTRUCTION COST
100
100
100
886594384 406800487
ishy
I I I I I I I I
APPENDIX A
I CONSTRUCTION EQUIPMENT
I I I I U I I I I I
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT
I Descqription
2 Chevrolet Impala Sedan
5 jeep-Wagoner
7 jeep-Wagoner
1 Chevrolet Vega
23 Chevrolet Pickup
19 Mack Tractor (T675-8W)
2 Chevrolet Flat Bed
5 Mack-Platform Stake (T426-3500)
1 Mack-2000 Gal Fuel (T426-3500)
4 Mack Dump Truck 10 cy
2 Chevrolet Dump Truck 5 cy
1 Mack-Birmingham Tandum Lowboy Trailer
2 Mack-Gindy 25 Ton Tandum Semi Trailer
8 Heil- P3S 303 cy Dump Trailer
I 7 Fruehauf-TEO-F3-R 10000 Gal Tanker
5 Fruehauf-TEO-F2-R 6500 Gal Tanker
5 Fruehauf-Tandum Axle Dolly
2 Barko 14000 Telescopic Crane
6 Cobey 1062 Wagon Trailer
1 Cedarapids 443 Commander Crusher
1 Peerless Portable Base Stabilisation Plant
2 Atlantic International Water Treatment Plant
6 Caterpillar 631-B TractorS631-B Scraper
7 Caterpillar D8-H Dozer
2 4
Caterpillar D9- Dozer Caterpillar D6-C Dozer
2 Caterpillar 12-F Grader
5 Caterpillar 14-E Grader
U A-i
1
I
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (Cont)
Quantity
4
1
4
11Raygo
1
S1 2
ICaterpillar-200KW 3
1
1
1
1
1
3
2 2
2
I
1
2
2
I
1 2
8
1
j 8
1 4
9
1
Description
Caterpillar 966 Loader
Trojan 4000 Loader
Raygo 400A Compactor Vibrator
410A Compactor Vibrator
Vibro Plus Vibrating Sheepsfoot Roller
Bros 10000 Compactor
Bros 6000 Compactor
Generator Caterpillar - 125KW Generator
Little Reddevil Generator
Kholer 3KW Generator
Kholer 2KW Generator
Detroit Diesel Generator (2D-32)
Kholer Generator (5CKM61)
Hobart GR-3 03 Welders w trolley
Worthington 365 Compressor Worthington 160 Compressor
Kellypower Tamper
John Deere 2700 Disc Harrow10 Cut
ohn Deere 1630 Disc Harrow 7 Cut
Worthington WS-55 Rock Drill
Alemite Portable Service Station
Graco Lube Ranger
Worthington Wagon Drill
Layne Bowler Deep Well Pump
Layne Bowler Pump only
4 Centrifugal Pump
2 Centrifugal Pump
Columbian Steel Water Tanks 20000 US Gal
A-2
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (contd)
Quanti
1I Description
Caterpillar Parallel Shank Ripper
2 Fleco Blade Rake
4 Chainsaw
3 Gardner-Denver Compressor
5 Aerotron Radio Transmitters $1203
7 Aerotron Radio Receivers $2 10
16 SSB Radio Transceivers $1340
8 Auxilliary Radio Transceivers $1340
2 Cevy 4 x 4 Pickup Truck 8 Chevy 2 x 4 Pickup Truck
1 L B Smith Cone Crusher
2 Ford 4 x 4 (1164-14C Tractor)
2 Bros Sheepsfoot Roller
1 Hyster Towed Vibratory Compactor
During 1975 and 1976 the Contractor added the following listed equipment
1 Caterpillar No 14 Motor Grader
1 Caterpillar No 966 Loader
1 Trojan No 4000 Loader
1 Cone Crushing Plant 3 ft Standard Fine Bowl with 4 Deck Screens
4 Conveyor Units
A-3
I 1 I I I U I I
APPENDIX B
I I SOILS AND MATERIALS
I I 1 I I I I I 1
APPENDIX B
SOILS AND MATERIALS
(a) General
The road pavement is composed basically of two layers the surface
course and base course overlaying a compacted subgrade or embankment
The sources and volumes of the surface course and base course materials
are indicated in the Materials Utilization Diagrams included as Figures B-i
through B-4
(b) Subgrade
The subgrade soil consists primarily of aeolian fine sand except
for approximately 36 kilometers of the road for which the subgrade is a pan material consisting of clay In the pan areas special 1 Om thick
embankments were constructed with plasticity and fineness control of material
The subgrade and embankment soils were compacted to a minimum of 90
of modified AASHTO compaction The measured mean relative compaction
obtained immediately after compaction of the subgrade was 935 of the modified AASHTO maximum density
(c) Base Course
The majority of the base course materials are derived from aeolian deposits ie fine sand with a trace to some silty clay The
remaining base bourse approximately 15 of the total was obtained from pits having a large component of gravel The 15cm thick base
course is bank run or blended material for which the amounts of fines
and plasticity were controlled The base course materials were obtained from 123 base borrow pits and compacted to a minimum 95 of modified AASHTO density The measured mean relative compaction
directly after construction was 96 of the modified AASHTO maximum
density
(d) Surface Course
The 15cm thick surface course is well graded sandy gravel with
some silty clay fraction The materials for the road segment from
Kilometer 0+000 to Kilometer 173+000 are derived from calcrete deposits
while the materials for the remaining portion are derived from weathered
3-1
bedrock The surface course has controlled gradation plasticity and
durability to obtain sufficient strength to reduce ravelling to a minimum
particularly during the dry season and to resist the wear of traffic
Surface course materials have been obtained by screening crushing
and blending materials from 9 borrow areas and were compacted to a
minimum of 98 of modified AASUTO maximum dry density The comshy
posite properties for each borrow pit are indicated in the Average
Gradation Ourvesincluded as Figures B-5 through B-13 Directly
after construction of the surface course the measured mean relative
compaction was 100 of the modified AASHTO maximum density
B-2
N A TA K A ZUN GU LA RO0A D 70 033 90 CC
00 00 0 0 0+I 03- 30L K
0 I I
M 3 100 0002L [2
_
MATERIALS UTILIZATION DIAGRAM Fiure -I
NATA - KAZUNGULA ROAD
+--- 121
y T
MATERIALS UTILIZATION DIAGRAM Fgure R-Z
NAT A - KAZ UN GULA ROAD
07 2 230K300 220 220 232 252
I 3 3 2
MATERIALS UTILIZATION DIAGRAM Figure 2-3
itLT-m
CHOBE RIVER BY-PASS ROAD 02__ Q___ 0 60 40 - 0 50 0 i
-F-CEL
-Tl J-II II
MATERIALS UTILIZATION DIAGRAM Figure B-4
3 SIEVE ANALYSIS SMI~ia VIII
IY UN In~ VI STAISRS SIEVE NUMBfh SUE9 - usuLguNuus O-- aoIiUl- I1
11I a to to 0 i oIIIa lf I
II
SN Cu ye B
II N
o
i B _ ___~ N II 1 l s - Curi e At-
I 2 I a 6 4 2 i5 4 3 2 a -
GRAIN I IZE MILTERS
SILT AND CLAY SOILS GRAVEL SAND
I NUMBE1RSAMPLE DEPTH LL KIE IPTIONIELEV P1 ECIT
A Composit 38 19 CrusherAverage Runof 192 samples
B Composit 33 17 Surface Course Blend asAverage of 236 samples placed
MDD 1960 kgm Los Angeles Abrasion = 42 Average Blend Added 15=
REPUBLIC OF BOTSWANA TI PPETTS-ASSETT-NcCAIThY-STRATTOU MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY BOTSWANA-ZAMBIA GRAIN SIZE DISTRIBUTION BY DmArTE Q76HIGHWAY j PIT 2A DOi FIGURE B-5
E ANLYSISSIEVE NALYSIS NI
OPEING - In jS PhIMS-SEVE iNRh3EN son - MILLIMETER
V11 6plusmn SSIEVE
6 i S 0-4 0 10 miUS) 3055 3 001mesa a
9 I I I - -
Crye B
S bull
1TCrii INN20 1 e A- NI deg I FIK 46591 2 a045 4 2 1115 5 2 6
GRIISZ IN MILLIMETERS
COACE iE NtIUM FI SILT AD CLAY SOILSGRAVEL SAND
5r IBSAMPLE DEPTH ELEV LLP1
A Composite 28 10 Crusher Run Average of 229 samples
B Composite 28 11 Surface Course Blend as Placed Average of 58 samples
2050 kgm3 Averaoe Blend Added shy
TIPPETTS-ASETT-NCCARTIY-STATTONREPUBLIC OF BOTSWANA NEW YORK NY
MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS
BRAIN SIZE DISTRIBUTION BY NCZ jAATE9 876BOTSWANA-ZAMBIA
HIGHWAY PIT 14 amp 14A OWN FIGURE B-6
i
S ANALYSIS 01 ANALYSIS
SIEVE - n -IIII- SIZ-MII- - IN i
It a s 1
Ue a -- e B
- 1 -I-[_I - I I I
6l51 10 8 $514 1 O is 05I I 21 8GANSZNILMTR OA RE Filo 9OA-1i 1DI UM F log S ILT AND CLAY SO ILS
GRAVEL nSAND
E--l I UNEASMPLEDEPlTH ELEV LL P1 KWKIPTION
A Composite 36 19 Crusher Run
Average of 116 Samples
B Composite 36 15 Surface Course Blend Average of 138 samples
H GHWA E SA 18 SILT ANDURCLA-SIL
3kgm Los Angeles Abrasion 28
Av agau Pnd AAd = 907 ITI UETT$-ABBTT-NcentcentARTNY-STRATTON
NEW YORK NY
REPUBLIC OF BOTSWANA
MINISTRY OF WORKS amp COM24UNICATIONSIT NINEERS1
I I MGIELI7 I 1 8AIIGIWAE
I
4
SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU
V 1 Oe 001l
- -r--I-I -- I
S E- -IN S
KI zz7llfl$zIIIti z I
low560
20
2
IGRAIN SIZE IN MILLIMETERS
COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS
GRAVEL SAND
SAMP DEPTH ELEV L P1 0NBERIIPTI
A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples
B Composit( 28 13 Surface Course Blend as Placed
Average of 85 samples
Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA
REPUBLIC OF BOTSWANA TI EfTTS-AIETT-NCARTY-STRATTOi ITTqTPI yen O WOVQ A n rn WTraTTn~lz ENGINEERS NEW YOlK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8
-D IUR IB
II SIEVE ANALYIIS 1411 I LYIlMll
[urn $11min - I I ITUSE IVV I - mampINimums1 -l0 n 001
a1 i 4 is s 0 aL w I 2 0665S a a 4 i 0i
-7sl
96---
I RI IE IN M IEER
CfliEI FIN g o au SIT SILFIN M40 5C o432 14593 ry B6
ver 7 samples
NUMBE NERPI
Ay I GRAIN SIZE IN MILLIMETR
5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND
A Q A- Aii dd d~A
IMUBEIRIIIIPIi
3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables
B Composit 26 13 Surface Course BlendU as Placed
Average of 79 samples
AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =
REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9
SIEVE ANALYSIS IMmv na awLYoia
SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I
I- 01 001
e---__
Ir1 -NIP_]
20
OA
$05 9 2
E
I
86543
I
7tN
2 1 65
_OAlEED t
5 2
FN
I
GRAIN SIZE IN MILLIMETERS
1 111I
NU BE GRAVEL
COARSE
I
MEDIUM
I SAND
FSILT AND CLAY SOILS
SAMPLE4 DEP EEY 1 SCBI1PTIORI
A
B
Composite
Composite
38
26
17
13
Crusher Run Basaltic Aggregate
Average of 176 samples
Surface Course Blend -s Placed Average of 58 samples
Average MDD = 2135 kgm Los Angeles Abrasion = 38
Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY
WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971
3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10
SIEVE ANIALYSIS lNVINI1111 ANALYSIS
I EV OPE IN - INI8 TOSIIEENN1-MLII
I
I - - i ii 0
I GRI SIZEto N OILS 1
I ANDLI IS
G VELIZE I
IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL
-APL ESN
DEPTH ELEY LL PI DESCRIPTIONNUSMBE
3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples
B Composite 26 13 Surface Course Blend as Placed Average of 58 samples
Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34
Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY
BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11
___ I
SIEVE ANALYSIS W11 ANKEm SIS
SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS
01 001
sodego
i i
U Ae
6 559 2 a65 3 2 1 6532 S
II GRAIN SIZE INMILLIMETERS
=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL
GRAVEL SN
I SAMPE DEPTH ELEV LL P)S DESCRIPTION
A omposite 28 10 Crusher Run
SAverage of 72 samples
B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples
Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20
REPUBLICUINISTRY 0OF OF
BOTSWANA WORKS amp COMMUNIGTIONS
TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12
I
SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM
-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U
I _
I1li
Ia _ Cu ve
N IC A11
IQI II
1 IG S IIIMETE
I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND
SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION
A Composite 34 15 Crusher Run Average of 74 samples
B Composite 29 12 Surface Course Blend as Placed
Average of 42 samples
MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15
REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA
ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N
NEW sy cKA
YORK NYT E-2 5 1 7 7
HIGHWAY PIT 32A Mwe FIGURE B-13
I I I I I I I I
APPENDIX C
I WATER WELL LOCATIONS
I I I I I I I I I
APPENDIX C WATER WELL LOCATIONS
WELL NO 3
Location Km 171 Lt of centerline 200 meters
Drill - 6 x 392
Ream - 8 x 92
Case - 6 x 84
Test - 24 Hours - 276
Pump 6000 G P H
Total depth - 392
Pumped at 150
24 Hr Drawdown - 3
Water Good
WELL NO 4
Location Km 175 - Lt of centerline 100 meters
Drill - 6 x 380
Ream - 8 x 82
Case - 7 x 82
Test - 276
Pump 1800 G P H
Total depth - 380
Pumped at 200
Drawdown 24 Hr - 100
Water Good
WELL NO 5 (Govt No 2436
Location Km 178 - Lt of centerline 115 meters
Test -276
Pump - 1400 G P H
Total depth - 160
Pumped at 140
24 Hr Drawdown - 60
Water Good C-1
WELL NO 6
Location Km 183 - Lt of centerline 60 meters
Drill - 6 x 436
Ream - 8 x 86
Case - 7 x 86
Test - 276
Pump - 500 G P H
Total depth - 436
Pumped at 250
24 Hr Drawdown - 150
Water Good
WELL NO 7 - (Govt No 2435)
Location Km 189 - Rt of centerline 100 meters
Clean amp Test
Pump - 6000 G P H
Pumped at 140
24 Hr Drawdown - 10
Water Good
WELL NO 14
Location Km 252 - Lt of centerline 100 meters
Drill - 6 x 250
Ream - 8 x 53
Case - 6 x 53
Test - 276
Pump - 6000 G P H
Total depth - 250
Pumped at 150
24 Hr Drawdown - 6
Water Good
C-2
WELL AT KM 256 MAINTENANCE FACILITY NO 3
Location Km 256 - Lt of centerline 200 meters
Depth - 100 feet
Water Rest Level - 42 feet
Depth Pump Set - 70 feet
24 Hr Test - 1800 G P H
WELL NO 15
Location Km 245 - Rt of centerline 40 meters
Drill - 6 x 260
Ream - 8 x 54
Case - 54
Test -276
Pump - 1500 G P H
Total depth - 260
Pumped at 200
24 Hr Drawdown - 140
Water Good
WELL NO 16 Location Km 236 -Rt of centerline 30 meters
Drill - 6 x 250
Ream - 8 x 22
Case - 6 x 22
Test - 276
Pump -6000 G P H
Total depth - 288
Pumped at 150
24 Hr Drawdown - 10
Water Good
C-3
WELL NO 17
Location Km 224 - Rt of centerline 30 meters
Drill - 10 x 89
Case - 8 x 85
Drill- 8x 43
Drill - 6 x 38
Case -6 x 132
Test - 276
Pump -2000 G P H
Total Depth - 170
Pumped at 100
24 Hr Drawdown - 11
Water Good
WELL NO 18
Location Km 217 - Lt of centerline 200 meters
Drill -i0 x 70
Case - 7 x 70
Drill - 7 x 52
Drill - 6 x 88
Case - 6 x 122
Test - 276
Pump 2400 G P H
Total depth - 210
Pumped at 200
24 Hr Drawdown - 140
Water Good
C-4
WELL NO 19
Location Km 213 - Lt of centerline 100 meters
Drill - 10 x 44
Case - 8 x 40
Drill - 8 x 76
Drill 6 x 130
Case - 6 x 120
Test - 276
Pump - 6000 G P H
Total depth - 210
Pumped at 60
24 Hr Drawdown - 10
Water Good
WELL NO 20
Location Km 143 - Rt of centerline 100 meters
Drill - 10 x 240
Case - 7 x 220
Drill -6 x 378
Case - 6 x 240
Case - 5 x 240
Test - 276
Pump -1500 G P H
Total depth - 618
Pumped at 460
24 Hr Drawdown - 105
Water slightly salty to taste but drinkable
C-5
WELL NO 23
Location Km 139 - Lt of centerline 100 meters
Drill - 12 x 290
Place amp Extract Case - 10 x 290
Drill - 8 x 30
Drill - 6 x 40
Case - 8 x 290
Case - 6 x 320
Test - 276
Pump - 1200 G P H
Total depth - 360
Pumped at 330
24 Hr Drawdown - 120
Water salty
WELL NO 24
Location Km 135 - Lt of centerline 500 meters
Drill - 12 x 270
Drill - 10 x 10
Case - 10 x 270
Drill -8 x 30
Case - 8 x 290
Case -6 x 310
Case - 5 x 320
Test -276
Pump -4000 +G P H
Total depth - 320
Pumped at 270
24 Hr Drawdown - 2
Water Salty
C-6
I
5
WELL KM 205 MAINTENANCE FACILITY NO 2
Location Km 105 - Lt of centerline 40 meters
Depth - 302 feet
~ Water Rest Level - 82 feet
Depth Pump Set - 150 feet
48 Hr Test - 3000 + G P H
WELL NO 26
Location Km 82 - Lt of centerline 100 meters
Drill - 12 x 145
5 -8 x145
Drill - 8 x 23
-Case
I Drill - 7 x 10
Case - 7 x 168
I Case - 6 x178
Test - 276
Pump - 1200 G P H
Total depth - 306
I Pumped at 140
24 Hr Drawdown - 35
I Water Good
C
I 0-7
WELL NO 27
Location Km 77 - Lt of centerline 100 meters
Drill - 12 x 174
Install amp Extract Case - 10 x 174
Case - 8 x 174
Drill - 9 x 68
Drill - 8 x 64
Case - 7 x 242
Case - 6 x 306
Test - 276
Pump - 4000 + G P H
Total Depth - 306
Pumpe at 240
24 Hr Drawdown - 0
Water Good
WELL NO 28- (Govt No 2465)
Location Km 63 - Rt of centerline 100 meters
Clean amp Extract Case - 300
Ream - 10 x 98
Ream - 8x 27
Ream - 6 x 12
Case - 8 x 98
Case - 6 x 125
Test - 276
Pump - 1000 + G P H
Total depth - 137
Pumped at 130
24 Hr Drawdown - 33
Water Good
C-8
WELL NO 30
Location Km 47 - Rt of centerline 400 meters
Drill - 12 x 132
Case - 10 x 89
Install amp Extract Case - 12 x 43
Drill - 10 x 117
Case - 7 x 242
Drill - 6 x 183
Install amp Extract Case - 6 x 408
Test - 276
Pump - 1000 G P H
Total depth - 408
Pumped at 160
24 Hr Drawdown - 77
Water Salty
WELL NO 31
- Lt of centerline 200 metersLocation Km 44
Drill - 12 x 110
Case - 10 x 100
Drill - 10 x 142
Case 8 x 142
Drill - 8 x 250
Case 7 x 392
Drill - 6 x 78
Test - 276
Pump - 3000 G P H
Total depth - 502
Pumped at 160
24 Hr Drawdown - 44
Water Salty
C-9
WELL NO 32
Location Km 42 - Lt of centerline 100 meters
Drill - 12 x 108
Case - 10 x 108
Drill - 10 x 212
Drill - 8 x 120
Case - 6 x 340
Case - 8 x 182
Test - 276
Pump - 3000 + G P H
Total depth - 448
Pumped at 160
24 Hr Drawdown - 20
Water Salty
WELL NO 34
Location Km 35 - Lt of centerline 200 meters
Drill - 12 x 230
Install amp Extract Case - 10 x 230
Drill - 8 x 30
Case -6 x 260
Drill - 6 x 160
Case -5 x 324
Case - 8 x 20
Test - 276
Pump -1000 + G P H
Total depth - 420
Pumped at 150
24 Hr Drawdown - 100
Water Salty
C-10
WELL NO 36
Location Km 7 N E along old track from Km 63
Drill - 12 x 180
Case - 10 x 180
Drill - 10 x 231
Case - 8 x 211
Drill- 8x 254
Case - 6 x 245
Test -276
Pump -4000 + G P H
Total depth - 265
Pumped at 180
24 Hr Drawdown - 0
Water Good
C-11
I 3 I 1 I I I I B j APPENDDC D
SYNOPSIS 0 KEY CORRESPONDENCE
3 DURING CONSTRUCTION
I pound I I I 1 I I
On September 1 1973 the Contractor confirmed the
estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts
On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project
On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be
obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated
On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine
On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation
On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension
On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension
On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval
On October 15 1973 the Engineer returned the construction progress schedule for correction
On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim
D-I
On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor
On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project
On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25
On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter
On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents
On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract
On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised
On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading
On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule
On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request
On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period
D-2
On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report
On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material
On August 19 1974 the Contractor submitted an updated construction progress schedule for approval
On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases
On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor
On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor
On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project
On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course
On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country
On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course
On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions
On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule
On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress
D-3
On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract
On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana
On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor
On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion
On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations
On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases
On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season
On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees
On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections
On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project
On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course
On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project
On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract
D-4
October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request
On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor
On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620
On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project
On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y
completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense
On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted
On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project
On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim
On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic
On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor
On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976
D-5
On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time
On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares
On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material
On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500
On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor
On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula
On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana
OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected
On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road
On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road
Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10
On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued
On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced
On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091
On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091
Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued
D-6
I I IUUU U U UU I U
E PROJECT PHOTOGRAPHS
I IIIU U I
I Crushing Plants Surface Course
Pit 2A
Pug Mill Blending Surface Course
Pit 25A
II Surface Course
Pit 25A
UURYPTOERTOSE Pug Mil Blending
Road Reserve Bush Clearing
Km 242
U
Embankment Construction Km 287
IN
Road Construction Water Supply
Km 189
ROADWAY UNDER CONSTRUTION
II
E-2
Stockpiling Material Base Course
Special Embankment Construction Km 232
Watering of Embankment Km 257
ROADWAY UNDER CONSTRUCTION E-3
Culvert Assembly
Twin Culvert with Sand-Cement Pitching
Multiple Culverts with Sand-Cement Pitching
CULVERT INSTALLATIONS E- 4
AT Km 25
AT Km 194
Emergency Landing Strip Kra 2605
FINISHED ROADWAY E- 5
AT Km 286
AT Chobe By-Pass Junction Km 297
I Chobe By-Pass Road Near Ngoma Bridge
E-6FINISHED ROADWAY
Advances for the purchase of new items (materials construction plant
equipment tools spare parts maintenance supplies and buildings furniture
and equipment for the Contractors and Engineers camps) totaling U S
$124443700 and local currency Rand 225000 were made available to the
Contractor as provided for by the Contract Documents Reimbursement of
these advances were made in January1974 in accordance with the Contract
requirements
The major items of construction and shop equipment imported by the
Contractor for use on the project are listed in Appendix A
V MATERIALS UTILIZED
A SOILS
The formation consists of two layers the surface and base courses
placed on a compacted subgrade or embankment Base course materials were
obtained from 123 borrow pits along the roadway Surface course materials
which required processing were obtained from 9 borrow areas Appendix B
contains the Material Utilization Diagrams which show the sources of these
borrow materials and their utilization along the road Also included in Appendix
B are the Average Gradation Curves of the processed surface course materials
B WATER
Water for construction was obtained from 24 water wells drilled by the
Contractor Appendix C contains information on locations depth and yields
of the wells
VI PROTECT HISTORY
A GENERAL The engineers inspectors and materials technicians employed by TAMS
systematically inspected construction operations and sampled and tested mashy
terials being incorporated in the work to ensure compliance with contract reshy
quirements Each month a determination was made of the work accomplished
-5shy
and eligible for payments and pay quantities for the Contractors monthly
progress estimates were certified
The Engineers survey parties verified reference points established
by the Contractors personnel for vertical and horizontal control points estabshy
lished along the preliminary base line and verified limits of bush clearing
flagged by the Contractor After the final line was staked detailed cross shy
sections were taken for computation of pay quantities Check measurements
were made periodically to verify the construction performed by the Contractor
As sections of the Project were completed final measurements were taken and
as-built plans prepared
Periodic progress reports and charts were prepared for the Government
and AID throughout the construction phase
After substantial completion of the works in January1977 a final inshy
spection of the project was made On January 19 1977 a Certificate of
Completion was issued by the Engineer As required by the Contract the
six-month maintenance period commenced
A synopsis of the more important correspondence initiated or received
by the Consultant in connection with administration of the Contract is included
in Appendix D
B SEQUENCE OF EVENTS
During late July and early August1973 the Contractor began to mobilize
personnel at Pandamatenga preparatory to commencing construction of the main
camp facilities
A sub-contract for construction of the engineers facilities atd some
items of the Contractors camp was negotiated between Grove International
and Botzam Services of Livingstone Zambia During September 1973 the subshy
contractor mobilized men equipment and material at Pandamatenga and comshy
menced construction on main camp housing units
On September 20 1973 the Contractor having been denied access
through the Botswana-Rhodesia Border at Pandamatenga for mobilizing equipment
material and supplies decided to shift the main camp site to the vicinity of
Kazungula The camp site was established at Kilometer 3+400 on the Chobe
River By-Pass road approximately 8 Kilometers east of the village of Kasane
3 -6shy
During late October construction of housing shops offices wareshy
houses and ancillary facilities commenced at the relocated main camp site
The camp facilities were substantially completed by the end of March 1974
Temporary satellite camps were later established at Pandamatenga at Kilometer
105 and at Kilometer 63 on the Nata-Kazungula segment of the project
Mobilization of construction equipment personnel material and supplies
began in early October 1973 and continued through April 1974
During the remainder of 1973 the construction efforts were concentrated
on construction of the main camp site A small amount of clearing grubbing
and earthwork was accomplished on the Chobe River By-Pass Road and on the
northern end of the Nata-Kazungula road
1 Principal Construction Accomplishments During 1974
Clearing and Grubbing - 5366 hectares completed between
Kilometer 297 and Kilometer 169 on the Nata-Kazungula segment
of the project
- Earthworks - excavation and borrow quantities came to a total
of approximately 506500m with the major portion of this work
performed between Kilometer 297 and Kilometer 196 on the Nata-
Kazungula segment of the project
- Pipe culverts - installed 59 pipes ranging in size from 18 to 60
diameter for a total of 1129 linealmeters between Kilometer 297
and Kilometer 196 on the Nata-Kazungula segment and from
Kilometer 0+000 to Kilometer 3+500 on the Pandamatenga Access
Road
Base Course - approximately 113600m placed between Kilometer
297 and Kilometer 197 on the Nata-Kazungula segment and from
Kilometer 0+000 to Kilometer 2+350 on the Pandamatenga Access
Road
Surface Course - approximately 19000m was placed between
Kilometer 292 and Kilometer 273+500 on the Nata-Kazungula segment
5-7shyI
2 Principal Construction Accomplishments During 1975
- Clearing and Grubbing - 634 hectares completed between
Kilometer 169 and Kilometer 2+000 on the Nata-Kazungula
segment between Kilometer 0+000 and Kilometer 14+000
on the Chobe River By-Pass segment and from Kilometer 2+350
to Kilometer 5+275 on the Pandamatenga Access Road
- Earthworks - excavation and borrow quantities came to a total
of 379145m3 with the major share of this work performed
between Kilometer 196 and Kilometer 49+000 on the Nata-
Kazungula segment and on the Pandamatenga Access Road
- Pipe Culverts - 69 pipes were installed ranging in size from
18 to 60 in diameter for a total of 1308 lineal meters
between Kilometer 200 and Kilometer 65 on the Nata-Kazungula
segment and from Kilometer 0+000 to Kilometer 5+200 on the
Pandamatenga Access Road
Base Course - approximately 219000m was placed between
Kilometer 197 and Kilometer 57 on the Nata-Kazungula segment
and on the entire 52 kilometers of the Pandamatenga Access
Road
Surface Course - approximately 177 000m of surface material
placed between Kilometer 273 and Kilometer 130 on the Nata-
Kazungula segment
3 Principal Construction Accomplishments During 1976
- Clearing and Grubbing - completed 2188 hectares between
Kilometer 2+000 and Kildmeter 0+000 and between Kilometer
297+300 and Kilometer299+600 on the Nata-Kazungula segment
and between Kilometer 14+000 and Kilometer 65+000 on the
Chobe River By-Pass segment which completed this item of
work
- Earthworks - excavation and borrow quantities came to a total
of 235092m which completed this item of work
-8shy
Pipe Culverts - 36 pipes were installed ranging in size from
18 to 48 diameter for a total of 973 lineal meters The
major share of this work was performed on the Chobe River
By-Pass segment
Base Course- 206120m3 was placed on the Nata-Kazungula
road between Kilometer 57+600 and Kilometer 0+000 and between
Kilometer 297+300 and Kilometer 299+588 and on the Chobe River
By-Pass road between Kilometer 0+000 and Kilometer 65+048
Surface Course - 260878m placed between Kilometer 130+000
and Kilometer 0+000 on the Nata-Kazungula road and between
Kilometer 0+000 and Kilometer 65+048 on the Chobe River By-Pass
Road
4 Principal Construction Accomplishments During 1977
The Contractor continued to work on final clean-up and corrective
work in accordance with the punch list provided by the Engineer On January
19 1977 the Completion Certificate was issued with a list of outstanding
deficiencies attached These were rectified by the Contractor during the
early part of the six-rnnth maintenance period The Contractor in compliance
with the Engineers instructions installed 10 additional 18 diameter CMP
culverts on the Nata-Kazungula road between Kilometer 236 and Kilometer 238
Two additional pipes were installed at Kilometer 6+540 on the Chobe River
By-Pass Road Rock was placed on sand fill slopes and at culvert inlets and
outlets to guard against erosion on numerous sections of the Nata-Kazungula
Road and Chobe River By-Pass Road The Contractor maintained the project
until July 19 1977 when a Certificate of Maintenance was issued
C PROTECT SCHDULING AND DELAYS
On October 5 1973 as required by Clause 12 Part II-Conditions of
Particular Application of the Conditions of Contract - the Contractor submitted
his proposed construction schedule for the project The schedule was returned
to the Contractor on October 16 1973 for modifications It was resubmitted
and finally approved on March 19 1974
-9shy
In October 1974 the Contractor presented a revised construction schedule
It was not approved by the Engineer who informed the Contractor that the
actual rate of progress was far below that projected by the schedule and reshy
quested an explanation as to what steps were contemplated to bring progress
on the project up to schedule
On November 6 1974 the Contractor again presented a revised conshy
struction schedule reflecting a completion date beyond the contract period for
completing the Project The Contractor made reference to conditions which
had allegedly caused delays to progress on the Project and stated that claims
would be presented requesting time extension for completion of the Project
The revised schedule was not approved pending presentation by the Contractor
of all supporting details
By the end of December 1974 the Contractor had completed 29 percent
of the work then specified in the Contract as modified by ten change orders
This compared with 55 percent scheduled to be completed according to the
approved progress schedule
On February 27 1975 the Engineer notified the Contractor that progress
was continuing to fall further behind the approved construction schedule and
requested the Contractor to submit in writing his plans for bringing progress
up to schedule in compliance with pertinent provisions of the Contract On Tuly
24 1975 the Contractor again presented a revised construction schedule reflectshy
ing a completion date of August 31 1976 This schedule was accepted by
the Engineer in September 1975 with the provision that acceptance of the
schedule should in no way be construed as an approval for extension of time
for completion of the project
By the end of 1975 the Contractor had completed 63 percent of the work specified in the contract as compared with 73 percent projected in the revised
construction schedule
On March 11 1976 the Contractor presented the 6th revision of the
construction schedule reflecting a completion date of December 31 1976
This schedule is included herein as Figure 2 The schedule was accepted by
the Engineer on March 24 1976 with the provision that acceptance of this
schedule should in no manner be construed as an approval of extension of time
for completing the project
-0shy
LEGEND CONSTRUCTION PROGRESS CHART BOTSWANA-ZAMBIA HIGHWAY
WORK ELEMENT lt I
MOBILIZATION 7 T z ltgt 7gtlt74gtlaquo 7
GENERAL gt gt lt lt+ $ lt2740gt77
SURVEYS
AND SITE CLEARING
PREPARESUGRADE lt gt
7+47
I EARTHWORKS ~kgt1 E ~gt07 gt0gt0 ~laquolt gtgt~lt7laquogt 77gt
BASE COURSE
SURFACE COURSE ~lt 7ltgtlaquoD4
+4 7iA
gt
ltgt7 77 gtlt4lt
P
DRAINAGE I-shy___MAINTENANCEI I _ _ _ _
FACILITIES - -gt 7 7 7 7lt7 ltgttVViV77W7vV~7~
HIGHWAY HARDWARE lt
CHANGE ORDERS AND I
DAY WORKS lt
TOTAL
VII FINANCIAL SUMMARY
As indicated in Section I-B of this report the funds available (from
AID) for the construction of this project were in the amount of U S $16600000
The disbursements of monies for the construction and construction supervision
through May 31 1978 are summarized in Table 3 along with the original esshy
timated amounts for comparison
TABLE 3
Disbursements Through Original Estimated
May 31 1978 Amounts
US $ RandPula US $ RandPula
Construction Costs (Grove International See Table 5) 882317486 310970881 897784200 316082500
Change Orders (From Table 1) 4276898 - 95829606
Supervision of Construction (TAMS) 129796299 - 135468100 -
TOTALS 1016390683 406800487 1033252300 316082500
From original contracts and supplements through May 31 1978
Table 4 presents a summary of final construction costs including
those by Contract Pay Items disbursed to the Contractor (Grove International)
The above listed costs do not include back charges on the loan which
charges are not available to the Engineer
The Contractor has submitted a series of claims requesting extensions
of time and reimbursement for claimed additional costs These claims are
currently under review by the Engineer A supplemental report will be issued
by the Engineer after the Contractors claims have been resolved and will
include any additional costs and time extensions awarded to the Contractor
Assuming an average rate of exchange of 1000 Pula or 1000 Rand
equal to 1350 U S Dollars and neglecting bank charges the approximate
loan balance as of May 31 1978 was U S $940000
-12shy
An average conversion rate of exchange has been used to estimate
the loan balance since the actual rate varied and actual draw-down figures
are not available to the Engineer
At the time of Project commencement the currency of Botswana was
the Rand In August 1976 the Botswana Government changed over from the
Rand to the Pula as the official currency During the course of construction
local currency disbursements have been made to the Contractor in both Rand
and Pula
-13shy
--- =1m =- M Il-- M=M m -
Sheet 1 of 4TABLE 4 - SCHEDULE OF FINAL CONTRACT QUANTITIES
Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount RandPula
No Description Measure Final Quantities US $ RandPula US $
101 Mobilization Lump Sum 10000 57077200 58360600 -0shy
201 Engineers Staff Housing 2-Bedroom House Each 1 3333 1300000 272100 1300000 272100
202 Engineers Staff Housing 3-Bedroom House Each 3 10000 1400000 339300 4200000 1017900
203 Engineers Staff Housing Technicians House Each 4 10000 650000 130100 2600000 520400
204 Engineers Staff Housing Jr Staff Housing Each 16 10000 112500 19600 1800000 313600
205 Moving amp Re-erection of Engineers Staff Housing Each move NOT APPLICABLE
206 Engineers Main Office Lump Sum 10000 1800000 306300
207 Engineers Main Laboratory Lump Sum 10000 2600000 407700
208 Moving amp Re-erection of Engineers Main Office Each Move NOT A P L I CA B L E and Main Laboratory
209 Engineers Forward OfficeLaboratory Each 2 10000 766300 1532600 -0shy
210 Additional Surveying Office Laboratory and Prime Cost 69809 1500000 1047146 -0-Communication Equipment
211 Contractors Expenses and Profit on Percent 69809 25 261787 -0-Prime Cost Item 210
212 Provide and Maintain Vehicles for ihe Engineers Staff Vmonth 304 Vmonth 24000 17100 7296000 5198400
301 Basic Survey and Setting Out km 370590 km 48500 13400 17973600 4965905
302 Clear Heavy Bush Hectare 514075 ha 23200 7500 11926540 3855563
303 Cleat Light Bush Hectare 70053 ha 15500 5000 10858215 3502650
304 Clear Grassy Hectare 1775 ha 12400 4000 2201000 710000
401 Prepare Sand Subgrade for Embankment m2 3335443 m 2 011 006 36689873 20012658
402 Prepare Clay Subgrade for Embankment m2 408450 m 2 023 011 9394350 4492950
501 Construct Standard Embankment i3 865895 m3 117 047 101309715 40697065
3502 Construct Special Embankment m3 254779 m 196 074 49936684 18853646
030 384035 129450503 Excavate Unsuitable Material m3 4315 m3 089
601 Base Course m3 538854 m3 310 120 167044740 64662480
602 Overhaul of Base Course Material m3km 46462 m3kr 028 010 1300936 464620
701 Remove Overburden from Surface Course Borrow Pits m3 260056 m3 060 016 15603360 4160896
702 Surface Course m3 457260 m3 545 210 249206700 96024600
703 Haul of Surface Course Material m3kmn 6572330 m3kr 0102 0034 67037766 22345922
TABLE 4 (Continued) Sheet 2 of 4
Item No Description
Unit of Measure
Total Revised Final Quantities
Contract Unit Price US $ RandPula
Final Revised Contract Amount US $ RandPula
801
802
803
Excavation and Backfill for Cuiverts up to 48 inches in diameter
Excavations for foundations of Culverts 48 inches and over
Backfilling culverts 48 inches and over
m3
m3
m3
558512 m3
94946 m3
322010 m3
480
270
490
330
140
360
2680858
256352
1577849
1843090
132923
1159236
804 Nestable Galvanized Corrugated Metal Pipe 18 inches in diameter 14 USSG
PIPE LM 249963 LM 4380 820 10948379 2049697
END SECTIONS Each 388 each 6660 225 2584080 87300
805 Nestable Galvanized Corrugated Metal Pipe 24 inches in diameter 14 USSG
PIPE LM 28104 LM 5560 1100 1562582 309144
Supply additional 24 inch diam Pipe 114035
END SECTIONS Each 34 each 10200 800 345800 27200
Supply additional End Sections 30600
806 Nestable Galvanized Corrugated Metal Pipe 36 inches in diameter 12 USSG
PIPE LM 19506 LM 10500 1600 2048130 312096
END SECTIONS Each 28 each 27600 2100 772800 58800
807 Nestable Galvanized Corrugated Metal Pipe 48 inches in diameter 12 USSG
PIPE LM 11522 each 13500 2200 1555470 253484
Supply additional 48 inch diam Pipe 10480
END SECTIONS Each 10 each 76200 4300 762000 43000
808 Nestable Galvanized Corrugated Metal Pipe 60 inches in diameter 10 USSG
PIPE LM 48768 LM 20400 2700 9948672 1316736
Supply additional 60 inch diam Pipe 47510
809
810
811
Excavate inlet and outlet drains mitre ditches and roadway ditches
Sand-cement Pitching
Clay slope Protection
m3
m3
m2
477781 m3
276769 m3
NA
110
2300
030
3000
100
525559
636569
-0-
143334
830307
-0shy
Supplied but not installed
mi -blN mN -m~ m ml m min nmlW arm~ nn- a a a a1 al a
TABLE 4 (Continued) Sheet 3 of 4
Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount No Description
812 Supply Nestable Galvanized Corrugated
Metal Pipe 18 inches in diameter 14 USSG
PIPE
END SECTIONS
901 Construct Maintenance Facility Complex
902 Water Pump
903 Contractors Expenses and Profit on Prime Cost Item 902
1001 Road Signs
1002 Guide Posts
1003 Kilometre Posts
Dayworks
TOTAL-SCHEDULE OF QUANTITIES
a
0) CO I CO 2
TAMS Staff Hotel Accommodation
Air Conditioners TCN Houses
CO 3
CO 4
NA (Progress Payment Permanent Material)
Additional TCN Housing
SUB-TOTAL
CO 5 POL Escalation Cost
CO 6 POL Escalation Cost
CO 7 POL Escalation Cost
SUB-TOTAL
LESS OVERPAYMENT
TOTAL POL ESCALATION COST
CO 8 Interim Allowance (Wage)
CO 9 Wage Escalation Cost
SUB-TOTAL
LESS OVERPAYMENT
TOTAL WAGE ESCALATION COST
Measure
LM
Each
Lump Sum
PC Sum
25
Each
Each
Each
As directed
Each
Final Quantities
238 LM
0 each
98
284 each
900 each
182 each
100
100
100
NA
6
100
100
100
100
100
US $
3400
6700
8520
As Billed
650000
As Shown
As Shown
As Shown
As Shown
As Shown
RandPula
900000
1000
1450
1500
130100
US $
809200
-0-
13014800
-0-
-0-
2419680
-0-
-0-
5999421
882317486
376898
3900000
4276898
RandPula
-0shy
-0shy
7308700
255223
63806
284000
1305000
273000
-0shy
310970881
842138
5307
780600
1628045
575601
1815344
77277517
79668462
1661539
78006923
297802
16022556
16320358
125720
16194638
TABLE 4 (Continued)
Item No Description
Unit of Measure
Total Revised Final Quantities
Contract Unit Price US $ RandPula
Sheet 4 of 4
Final Revised Contract Amount US $ RandPula
CO 10
CO 11
CO 12
Road Reserve cleared way Chobe River By-pass (included under items 302 303 and 304)
Importation Additional Sheeps foot roller (included under item 101)
Minor realignment of roadway at Nata
TOTAL CONSTRUCTION COST
100
100
100
886594384 406800487
ishy
I I I I I I I I
APPENDIX A
I CONSTRUCTION EQUIPMENT
I I I I U I I I I I
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT
I Descqription
2 Chevrolet Impala Sedan
5 jeep-Wagoner
7 jeep-Wagoner
1 Chevrolet Vega
23 Chevrolet Pickup
19 Mack Tractor (T675-8W)
2 Chevrolet Flat Bed
5 Mack-Platform Stake (T426-3500)
1 Mack-2000 Gal Fuel (T426-3500)
4 Mack Dump Truck 10 cy
2 Chevrolet Dump Truck 5 cy
1 Mack-Birmingham Tandum Lowboy Trailer
2 Mack-Gindy 25 Ton Tandum Semi Trailer
8 Heil- P3S 303 cy Dump Trailer
I 7 Fruehauf-TEO-F3-R 10000 Gal Tanker
5 Fruehauf-TEO-F2-R 6500 Gal Tanker
5 Fruehauf-Tandum Axle Dolly
2 Barko 14000 Telescopic Crane
6 Cobey 1062 Wagon Trailer
1 Cedarapids 443 Commander Crusher
1 Peerless Portable Base Stabilisation Plant
2 Atlantic International Water Treatment Plant
6 Caterpillar 631-B TractorS631-B Scraper
7 Caterpillar D8-H Dozer
2 4
Caterpillar D9- Dozer Caterpillar D6-C Dozer
2 Caterpillar 12-F Grader
5 Caterpillar 14-E Grader
U A-i
1
I
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (Cont)
Quantity
4
1
4
11Raygo
1
S1 2
ICaterpillar-200KW 3
1
1
1
1
1
3
2 2
2
I
1
2
2
I
1 2
8
1
j 8
1 4
9
1
Description
Caterpillar 966 Loader
Trojan 4000 Loader
Raygo 400A Compactor Vibrator
410A Compactor Vibrator
Vibro Plus Vibrating Sheepsfoot Roller
Bros 10000 Compactor
Bros 6000 Compactor
Generator Caterpillar - 125KW Generator
Little Reddevil Generator
Kholer 3KW Generator
Kholer 2KW Generator
Detroit Diesel Generator (2D-32)
Kholer Generator (5CKM61)
Hobart GR-3 03 Welders w trolley
Worthington 365 Compressor Worthington 160 Compressor
Kellypower Tamper
John Deere 2700 Disc Harrow10 Cut
ohn Deere 1630 Disc Harrow 7 Cut
Worthington WS-55 Rock Drill
Alemite Portable Service Station
Graco Lube Ranger
Worthington Wagon Drill
Layne Bowler Deep Well Pump
Layne Bowler Pump only
4 Centrifugal Pump
2 Centrifugal Pump
Columbian Steel Water Tanks 20000 US Gal
A-2
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (contd)
Quanti
1I Description
Caterpillar Parallel Shank Ripper
2 Fleco Blade Rake
4 Chainsaw
3 Gardner-Denver Compressor
5 Aerotron Radio Transmitters $1203
7 Aerotron Radio Receivers $2 10
16 SSB Radio Transceivers $1340
8 Auxilliary Radio Transceivers $1340
2 Cevy 4 x 4 Pickup Truck 8 Chevy 2 x 4 Pickup Truck
1 L B Smith Cone Crusher
2 Ford 4 x 4 (1164-14C Tractor)
2 Bros Sheepsfoot Roller
1 Hyster Towed Vibratory Compactor
During 1975 and 1976 the Contractor added the following listed equipment
1 Caterpillar No 14 Motor Grader
1 Caterpillar No 966 Loader
1 Trojan No 4000 Loader
1 Cone Crushing Plant 3 ft Standard Fine Bowl with 4 Deck Screens
4 Conveyor Units
A-3
I 1 I I I U I I
APPENDIX B
I I SOILS AND MATERIALS
I I 1 I I I I I 1
APPENDIX B
SOILS AND MATERIALS
(a) General
The road pavement is composed basically of two layers the surface
course and base course overlaying a compacted subgrade or embankment
The sources and volumes of the surface course and base course materials
are indicated in the Materials Utilization Diagrams included as Figures B-i
through B-4
(b) Subgrade
The subgrade soil consists primarily of aeolian fine sand except
for approximately 36 kilometers of the road for which the subgrade is a pan material consisting of clay In the pan areas special 1 Om thick
embankments were constructed with plasticity and fineness control of material
The subgrade and embankment soils were compacted to a minimum of 90
of modified AASHTO compaction The measured mean relative compaction
obtained immediately after compaction of the subgrade was 935 of the modified AASHTO maximum density
(c) Base Course
The majority of the base course materials are derived from aeolian deposits ie fine sand with a trace to some silty clay The
remaining base bourse approximately 15 of the total was obtained from pits having a large component of gravel The 15cm thick base
course is bank run or blended material for which the amounts of fines
and plasticity were controlled The base course materials were obtained from 123 base borrow pits and compacted to a minimum 95 of modified AASHTO density The measured mean relative compaction
directly after construction was 96 of the modified AASHTO maximum
density
(d) Surface Course
The 15cm thick surface course is well graded sandy gravel with
some silty clay fraction The materials for the road segment from
Kilometer 0+000 to Kilometer 173+000 are derived from calcrete deposits
while the materials for the remaining portion are derived from weathered
3-1
bedrock The surface course has controlled gradation plasticity and
durability to obtain sufficient strength to reduce ravelling to a minimum
particularly during the dry season and to resist the wear of traffic
Surface course materials have been obtained by screening crushing
and blending materials from 9 borrow areas and were compacted to a
minimum of 98 of modified AASUTO maximum dry density The comshy
posite properties for each borrow pit are indicated in the Average
Gradation Ourvesincluded as Figures B-5 through B-13 Directly
after construction of the surface course the measured mean relative
compaction was 100 of the modified AASHTO maximum density
B-2
N A TA K A ZUN GU LA RO0A D 70 033 90 CC
00 00 0 0 0+I 03- 30L K
0 I I
M 3 100 0002L [2
_
MATERIALS UTILIZATION DIAGRAM Fiure -I
NATA - KAZUNGULA ROAD
+--- 121
y T
MATERIALS UTILIZATION DIAGRAM Fgure R-Z
NAT A - KAZ UN GULA ROAD
07 2 230K300 220 220 232 252
I 3 3 2
MATERIALS UTILIZATION DIAGRAM Figure 2-3
itLT-m
CHOBE RIVER BY-PASS ROAD 02__ Q___ 0 60 40 - 0 50 0 i
-F-CEL
-Tl J-II II
MATERIALS UTILIZATION DIAGRAM Figure B-4
3 SIEVE ANALYSIS SMI~ia VIII
IY UN In~ VI STAISRS SIEVE NUMBfh SUE9 - usuLguNuus O-- aoIiUl- I1
11I a to to 0 i oIIIa lf I
II
SN Cu ye B
II N
o
i B _ ___~ N II 1 l s - Curi e At-
I 2 I a 6 4 2 i5 4 3 2 a -
GRAIN I IZE MILTERS
SILT AND CLAY SOILS GRAVEL SAND
I NUMBE1RSAMPLE DEPTH LL KIE IPTIONIELEV P1 ECIT
A Composit 38 19 CrusherAverage Runof 192 samples
B Composit 33 17 Surface Course Blend asAverage of 236 samples placed
MDD 1960 kgm Los Angeles Abrasion = 42 Average Blend Added 15=
REPUBLIC OF BOTSWANA TI PPETTS-ASSETT-NcCAIThY-STRATTOU MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY BOTSWANA-ZAMBIA GRAIN SIZE DISTRIBUTION BY DmArTE Q76HIGHWAY j PIT 2A DOi FIGURE B-5
E ANLYSISSIEVE NALYSIS NI
OPEING - In jS PhIMS-SEVE iNRh3EN son - MILLIMETER
V11 6plusmn SSIEVE
6 i S 0-4 0 10 miUS) 3055 3 001mesa a
9 I I I - -
Crye B
S bull
1TCrii INN20 1 e A- NI deg I FIK 46591 2 a045 4 2 1115 5 2 6
GRIISZ IN MILLIMETERS
COACE iE NtIUM FI SILT AD CLAY SOILSGRAVEL SAND
5r IBSAMPLE DEPTH ELEV LLP1
A Composite 28 10 Crusher Run Average of 229 samples
B Composite 28 11 Surface Course Blend as Placed Average of 58 samples
2050 kgm3 Averaoe Blend Added shy
TIPPETTS-ASETT-NCCARTIY-STATTONREPUBLIC OF BOTSWANA NEW YORK NY
MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS
BRAIN SIZE DISTRIBUTION BY NCZ jAATE9 876BOTSWANA-ZAMBIA
HIGHWAY PIT 14 amp 14A OWN FIGURE B-6
i
S ANALYSIS 01 ANALYSIS
SIEVE - n -IIII- SIZ-MII- - IN i
It a s 1
Ue a -- e B
- 1 -I-[_I - I I I
6l51 10 8 $514 1 O is 05I I 21 8GANSZNILMTR OA RE Filo 9OA-1i 1DI UM F log S ILT AND CLAY SO ILS
GRAVEL nSAND
E--l I UNEASMPLEDEPlTH ELEV LL P1 KWKIPTION
A Composite 36 19 Crusher Run
Average of 116 Samples
B Composite 36 15 Surface Course Blend Average of 138 samples
H GHWA E SA 18 SILT ANDURCLA-SIL
3kgm Los Angeles Abrasion 28
Av agau Pnd AAd = 907 ITI UETT$-ABBTT-NcentcentARTNY-STRATTON
NEW YORK NY
REPUBLIC OF BOTSWANA
MINISTRY OF WORKS amp COM24UNICATIONSIT NINEERS1
I I MGIELI7 I 1 8AIIGIWAE
I
4
SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU
V 1 Oe 001l
- -r--I-I -- I
S E- -IN S
KI zz7llfl$zIIIti z I
low560
20
2
IGRAIN SIZE IN MILLIMETERS
COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS
GRAVEL SAND
SAMP DEPTH ELEV L P1 0NBERIIPTI
A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples
B Composit( 28 13 Surface Course Blend as Placed
Average of 85 samples
Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA
REPUBLIC OF BOTSWANA TI EfTTS-AIETT-NCARTY-STRATTOi ITTqTPI yen O WOVQ A n rn WTraTTn~lz ENGINEERS NEW YOlK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8
-D IUR IB
II SIEVE ANALYIIS 1411 I LYIlMll
[urn $11min - I I ITUSE IVV I - mampINimums1 -l0 n 001
a1 i 4 is s 0 aL w I 2 0665S a a 4 i 0i
-7sl
96---
I RI IE IN M IEER
CfliEI FIN g o au SIT SILFIN M40 5C o432 14593 ry B6
ver 7 samples
NUMBE NERPI
Ay I GRAIN SIZE IN MILLIMETR
5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND
A Q A- Aii dd d~A
IMUBEIRIIIIPIi
3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables
B Composit 26 13 Surface Course BlendU as Placed
Average of 79 samples
AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =
REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9
SIEVE ANALYSIS IMmv na awLYoia
SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I
I- 01 001
e---__
Ir1 -NIP_]
20
OA
$05 9 2
E
I
86543
I
7tN
2 1 65
_OAlEED t
5 2
FN
I
GRAIN SIZE IN MILLIMETERS
1 111I
NU BE GRAVEL
COARSE
I
MEDIUM
I SAND
FSILT AND CLAY SOILS
SAMPLE4 DEP EEY 1 SCBI1PTIORI
A
B
Composite
Composite
38
26
17
13
Crusher Run Basaltic Aggregate
Average of 176 samples
Surface Course Blend -s Placed Average of 58 samples
Average MDD = 2135 kgm Los Angeles Abrasion = 38
Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY
WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971
3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10
SIEVE ANIALYSIS lNVINI1111 ANALYSIS
I EV OPE IN - INI8 TOSIIEENN1-MLII
I
I - - i ii 0
I GRI SIZEto N OILS 1
I ANDLI IS
G VELIZE I
IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL
-APL ESN
DEPTH ELEY LL PI DESCRIPTIONNUSMBE
3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples
B Composite 26 13 Surface Course Blend as Placed Average of 58 samples
Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34
Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY
BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11
___ I
SIEVE ANALYSIS W11 ANKEm SIS
SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS
01 001
sodego
i i
U Ae
6 559 2 a65 3 2 1 6532 S
II GRAIN SIZE INMILLIMETERS
=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL
GRAVEL SN
I SAMPE DEPTH ELEV LL P)S DESCRIPTION
A omposite 28 10 Crusher Run
SAverage of 72 samples
B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples
Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20
REPUBLICUINISTRY 0OF OF
BOTSWANA WORKS amp COMMUNIGTIONS
TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12
I
SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM
-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U
I _
I1li
Ia _ Cu ve
N IC A11
IQI II
1 IG S IIIMETE
I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND
SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION
A Composite 34 15 Crusher Run Average of 74 samples
B Composite 29 12 Surface Course Blend as Placed
Average of 42 samples
MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15
REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA
ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N
NEW sy cKA
YORK NYT E-2 5 1 7 7
HIGHWAY PIT 32A Mwe FIGURE B-13
I I I I I I I I
APPENDIX C
I WATER WELL LOCATIONS
I I I I I I I I I
APPENDIX C WATER WELL LOCATIONS
WELL NO 3
Location Km 171 Lt of centerline 200 meters
Drill - 6 x 392
Ream - 8 x 92
Case - 6 x 84
Test - 24 Hours - 276
Pump 6000 G P H
Total depth - 392
Pumped at 150
24 Hr Drawdown - 3
Water Good
WELL NO 4
Location Km 175 - Lt of centerline 100 meters
Drill - 6 x 380
Ream - 8 x 82
Case - 7 x 82
Test - 276
Pump 1800 G P H
Total depth - 380
Pumped at 200
Drawdown 24 Hr - 100
Water Good
WELL NO 5 (Govt No 2436
Location Km 178 - Lt of centerline 115 meters
Test -276
Pump - 1400 G P H
Total depth - 160
Pumped at 140
24 Hr Drawdown - 60
Water Good C-1
WELL NO 6
Location Km 183 - Lt of centerline 60 meters
Drill - 6 x 436
Ream - 8 x 86
Case - 7 x 86
Test - 276
Pump - 500 G P H
Total depth - 436
Pumped at 250
24 Hr Drawdown - 150
Water Good
WELL NO 7 - (Govt No 2435)
Location Km 189 - Rt of centerline 100 meters
Clean amp Test
Pump - 6000 G P H
Pumped at 140
24 Hr Drawdown - 10
Water Good
WELL NO 14
Location Km 252 - Lt of centerline 100 meters
Drill - 6 x 250
Ream - 8 x 53
Case - 6 x 53
Test - 276
Pump - 6000 G P H
Total depth - 250
Pumped at 150
24 Hr Drawdown - 6
Water Good
C-2
WELL AT KM 256 MAINTENANCE FACILITY NO 3
Location Km 256 - Lt of centerline 200 meters
Depth - 100 feet
Water Rest Level - 42 feet
Depth Pump Set - 70 feet
24 Hr Test - 1800 G P H
WELL NO 15
Location Km 245 - Rt of centerline 40 meters
Drill - 6 x 260
Ream - 8 x 54
Case - 54
Test -276
Pump - 1500 G P H
Total depth - 260
Pumped at 200
24 Hr Drawdown - 140
Water Good
WELL NO 16 Location Km 236 -Rt of centerline 30 meters
Drill - 6 x 250
Ream - 8 x 22
Case - 6 x 22
Test - 276
Pump -6000 G P H
Total depth - 288
Pumped at 150
24 Hr Drawdown - 10
Water Good
C-3
WELL NO 17
Location Km 224 - Rt of centerline 30 meters
Drill - 10 x 89
Case - 8 x 85
Drill- 8x 43
Drill - 6 x 38
Case -6 x 132
Test - 276
Pump -2000 G P H
Total Depth - 170
Pumped at 100
24 Hr Drawdown - 11
Water Good
WELL NO 18
Location Km 217 - Lt of centerline 200 meters
Drill -i0 x 70
Case - 7 x 70
Drill - 7 x 52
Drill - 6 x 88
Case - 6 x 122
Test - 276
Pump 2400 G P H
Total depth - 210
Pumped at 200
24 Hr Drawdown - 140
Water Good
C-4
WELL NO 19
Location Km 213 - Lt of centerline 100 meters
Drill - 10 x 44
Case - 8 x 40
Drill - 8 x 76
Drill 6 x 130
Case - 6 x 120
Test - 276
Pump - 6000 G P H
Total depth - 210
Pumped at 60
24 Hr Drawdown - 10
Water Good
WELL NO 20
Location Km 143 - Rt of centerline 100 meters
Drill - 10 x 240
Case - 7 x 220
Drill -6 x 378
Case - 6 x 240
Case - 5 x 240
Test - 276
Pump -1500 G P H
Total depth - 618
Pumped at 460
24 Hr Drawdown - 105
Water slightly salty to taste but drinkable
C-5
WELL NO 23
Location Km 139 - Lt of centerline 100 meters
Drill - 12 x 290
Place amp Extract Case - 10 x 290
Drill - 8 x 30
Drill - 6 x 40
Case - 8 x 290
Case - 6 x 320
Test - 276
Pump - 1200 G P H
Total depth - 360
Pumped at 330
24 Hr Drawdown - 120
Water salty
WELL NO 24
Location Km 135 - Lt of centerline 500 meters
Drill - 12 x 270
Drill - 10 x 10
Case - 10 x 270
Drill -8 x 30
Case - 8 x 290
Case -6 x 310
Case - 5 x 320
Test -276
Pump -4000 +G P H
Total depth - 320
Pumped at 270
24 Hr Drawdown - 2
Water Salty
C-6
I
5
WELL KM 205 MAINTENANCE FACILITY NO 2
Location Km 105 - Lt of centerline 40 meters
Depth - 302 feet
~ Water Rest Level - 82 feet
Depth Pump Set - 150 feet
48 Hr Test - 3000 + G P H
WELL NO 26
Location Km 82 - Lt of centerline 100 meters
Drill - 12 x 145
5 -8 x145
Drill - 8 x 23
-Case
I Drill - 7 x 10
Case - 7 x 168
I Case - 6 x178
Test - 276
Pump - 1200 G P H
Total depth - 306
I Pumped at 140
24 Hr Drawdown - 35
I Water Good
C
I 0-7
WELL NO 27
Location Km 77 - Lt of centerline 100 meters
Drill - 12 x 174
Install amp Extract Case - 10 x 174
Case - 8 x 174
Drill - 9 x 68
Drill - 8 x 64
Case - 7 x 242
Case - 6 x 306
Test - 276
Pump - 4000 + G P H
Total Depth - 306
Pumpe at 240
24 Hr Drawdown - 0
Water Good
WELL NO 28- (Govt No 2465)
Location Km 63 - Rt of centerline 100 meters
Clean amp Extract Case - 300
Ream - 10 x 98
Ream - 8x 27
Ream - 6 x 12
Case - 8 x 98
Case - 6 x 125
Test - 276
Pump - 1000 + G P H
Total depth - 137
Pumped at 130
24 Hr Drawdown - 33
Water Good
C-8
WELL NO 30
Location Km 47 - Rt of centerline 400 meters
Drill - 12 x 132
Case - 10 x 89
Install amp Extract Case - 12 x 43
Drill - 10 x 117
Case - 7 x 242
Drill - 6 x 183
Install amp Extract Case - 6 x 408
Test - 276
Pump - 1000 G P H
Total depth - 408
Pumped at 160
24 Hr Drawdown - 77
Water Salty
WELL NO 31
- Lt of centerline 200 metersLocation Km 44
Drill - 12 x 110
Case - 10 x 100
Drill - 10 x 142
Case 8 x 142
Drill - 8 x 250
Case 7 x 392
Drill - 6 x 78
Test - 276
Pump - 3000 G P H
Total depth - 502
Pumped at 160
24 Hr Drawdown - 44
Water Salty
C-9
WELL NO 32
Location Km 42 - Lt of centerline 100 meters
Drill - 12 x 108
Case - 10 x 108
Drill - 10 x 212
Drill - 8 x 120
Case - 6 x 340
Case - 8 x 182
Test - 276
Pump - 3000 + G P H
Total depth - 448
Pumped at 160
24 Hr Drawdown - 20
Water Salty
WELL NO 34
Location Km 35 - Lt of centerline 200 meters
Drill - 12 x 230
Install amp Extract Case - 10 x 230
Drill - 8 x 30
Case -6 x 260
Drill - 6 x 160
Case -5 x 324
Case - 8 x 20
Test - 276
Pump -1000 + G P H
Total depth - 420
Pumped at 150
24 Hr Drawdown - 100
Water Salty
C-10
WELL NO 36
Location Km 7 N E along old track from Km 63
Drill - 12 x 180
Case - 10 x 180
Drill - 10 x 231
Case - 8 x 211
Drill- 8x 254
Case - 6 x 245
Test -276
Pump -4000 + G P H
Total depth - 265
Pumped at 180
24 Hr Drawdown - 0
Water Good
C-11
I 3 I 1 I I I I B j APPENDDC D
SYNOPSIS 0 KEY CORRESPONDENCE
3 DURING CONSTRUCTION
I pound I I I 1 I I
On September 1 1973 the Contractor confirmed the
estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts
On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project
On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be
obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated
On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine
On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation
On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension
On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension
On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval
On October 15 1973 the Engineer returned the construction progress schedule for correction
On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim
D-I
On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor
On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project
On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25
On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter
On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents
On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract
On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised
On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading
On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule
On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request
On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period
D-2
On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report
On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material
On August 19 1974 the Contractor submitted an updated construction progress schedule for approval
On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases
On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor
On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor
On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project
On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course
On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country
On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course
On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions
On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule
On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress
D-3
On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract
On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana
On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor
On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion
On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations
On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases
On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season
On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees
On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections
On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project
On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course
On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project
On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract
D-4
October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request
On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor
On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620
On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project
On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y
completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense
On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted
On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project
On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim
On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic
On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor
On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976
D-5
On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time
On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares
On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material
On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500
On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor
On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula
On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana
OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected
On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road
On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road
Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10
On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued
On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced
On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091
On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091
Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued
D-6
I I IUUU U U UU I U
E PROJECT PHOTOGRAPHS
I IIIU U I
I Crushing Plants Surface Course
Pit 2A
Pug Mill Blending Surface Course
Pit 25A
II Surface Course
Pit 25A
UURYPTOERTOSE Pug Mil Blending
Road Reserve Bush Clearing
Km 242
U
Embankment Construction Km 287
IN
Road Construction Water Supply
Km 189
ROADWAY UNDER CONSTRUTION
II
E-2
Stockpiling Material Base Course
Special Embankment Construction Km 232
Watering of Embankment Km 257
ROADWAY UNDER CONSTRUCTION E-3
Culvert Assembly
Twin Culvert with Sand-Cement Pitching
Multiple Culverts with Sand-Cement Pitching
CULVERT INSTALLATIONS E- 4
AT Km 25
AT Km 194
Emergency Landing Strip Kra 2605
FINISHED ROADWAY E- 5
AT Km 286
AT Chobe By-Pass Junction Km 297
I Chobe By-Pass Road Near Ngoma Bridge
E-6FINISHED ROADWAY
and eligible for payments and pay quantities for the Contractors monthly
progress estimates were certified
The Engineers survey parties verified reference points established
by the Contractors personnel for vertical and horizontal control points estabshy
lished along the preliminary base line and verified limits of bush clearing
flagged by the Contractor After the final line was staked detailed cross shy
sections were taken for computation of pay quantities Check measurements
were made periodically to verify the construction performed by the Contractor
As sections of the Project were completed final measurements were taken and
as-built plans prepared
Periodic progress reports and charts were prepared for the Government
and AID throughout the construction phase
After substantial completion of the works in January1977 a final inshy
spection of the project was made On January 19 1977 a Certificate of
Completion was issued by the Engineer As required by the Contract the
six-month maintenance period commenced
A synopsis of the more important correspondence initiated or received
by the Consultant in connection with administration of the Contract is included
in Appendix D
B SEQUENCE OF EVENTS
During late July and early August1973 the Contractor began to mobilize
personnel at Pandamatenga preparatory to commencing construction of the main
camp facilities
A sub-contract for construction of the engineers facilities atd some
items of the Contractors camp was negotiated between Grove International
and Botzam Services of Livingstone Zambia During September 1973 the subshy
contractor mobilized men equipment and material at Pandamatenga and comshy
menced construction on main camp housing units
On September 20 1973 the Contractor having been denied access
through the Botswana-Rhodesia Border at Pandamatenga for mobilizing equipment
material and supplies decided to shift the main camp site to the vicinity of
Kazungula The camp site was established at Kilometer 3+400 on the Chobe
River By-Pass road approximately 8 Kilometers east of the village of Kasane
3 -6shy
During late October construction of housing shops offices wareshy
houses and ancillary facilities commenced at the relocated main camp site
The camp facilities were substantially completed by the end of March 1974
Temporary satellite camps were later established at Pandamatenga at Kilometer
105 and at Kilometer 63 on the Nata-Kazungula segment of the project
Mobilization of construction equipment personnel material and supplies
began in early October 1973 and continued through April 1974
During the remainder of 1973 the construction efforts were concentrated
on construction of the main camp site A small amount of clearing grubbing
and earthwork was accomplished on the Chobe River By-Pass Road and on the
northern end of the Nata-Kazungula road
1 Principal Construction Accomplishments During 1974
Clearing and Grubbing - 5366 hectares completed between
Kilometer 297 and Kilometer 169 on the Nata-Kazungula segment
of the project
- Earthworks - excavation and borrow quantities came to a total
of approximately 506500m with the major portion of this work
performed between Kilometer 297 and Kilometer 196 on the Nata-
Kazungula segment of the project
- Pipe culverts - installed 59 pipes ranging in size from 18 to 60
diameter for a total of 1129 linealmeters between Kilometer 297
and Kilometer 196 on the Nata-Kazungula segment and from
Kilometer 0+000 to Kilometer 3+500 on the Pandamatenga Access
Road
Base Course - approximately 113600m placed between Kilometer
297 and Kilometer 197 on the Nata-Kazungula segment and from
Kilometer 0+000 to Kilometer 2+350 on the Pandamatenga Access
Road
Surface Course - approximately 19000m was placed between
Kilometer 292 and Kilometer 273+500 on the Nata-Kazungula segment
5-7shyI
2 Principal Construction Accomplishments During 1975
- Clearing and Grubbing - 634 hectares completed between
Kilometer 169 and Kilometer 2+000 on the Nata-Kazungula
segment between Kilometer 0+000 and Kilometer 14+000
on the Chobe River By-Pass segment and from Kilometer 2+350
to Kilometer 5+275 on the Pandamatenga Access Road
- Earthworks - excavation and borrow quantities came to a total
of 379145m3 with the major share of this work performed
between Kilometer 196 and Kilometer 49+000 on the Nata-
Kazungula segment and on the Pandamatenga Access Road
- Pipe Culverts - 69 pipes were installed ranging in size from
18 to 60 in diameter for a total of 1308 lineal meters
between Kilometer 200 and Kilometer 65 on the Nata-Kazungula
segment and from Kilometer 0+000 to Kilometer 5+200 on the
Pandamatenga Access Road
Base Course - approximately 219000m was placed between
Kilometer 197 and Kilometer 57 on the Nata-Kazungula segment
and on the entire 52 kilometers of the Pandamatenga Access
Road
Surface Course - approximately 177 000m of surface material
placed between Kilometer 273 and Kilometer 130 on the Nata-
Kazungula segment
3 Principal Construction Accomplishments During 1976
- Clearing and Grubbing - completed 2188 hectares between
Kilometer 2+000 and Kildmeter 0+000 and between Kilometer
297+300 and Kilometer299+600 on the Nata-Kazungula segment
and between Kilometer 14+000 and Kilometer 65+000 on the
Chobe River By-Pass segment which completed this item of
work
- Earthworks - excavation and borrow quantities came to a total
of 235092m which completed this item of work
-8shy
Pipe Culverts - 36 pipes were installed ranging in size from
18 to 48 diameter for a total of 973 lineal meters The
major share of this work was performed on the Chobe River
By-Pass segment
Base Course- 206120m3 was placed on the Nata-Kazungula
road between Kilometer 57+600 and Kilometer 0+000 and between
Kilometer 297+300 and Kilometer 299+588 and on the Chobe River
By-Pass road between Kilometer 0+000 and Kilometer 65+048
Surface Course - 260878m placed between Kilometer 130+000
and Kilometer 0+000 on the Nata-Kazungula road and between
Kilometer 0+000 and Kilometer 65+048 on the Chobe River By-Pass
Road
4 Principal Construction Accomplishments During 1977
The Contractor continued to work on final clean-up and corrective
work in accordance with the punch list provided by the Engineer On January
19 1977 the Completion Certificate was issued with a list of outstanding
deficiencies attached These were rectified by the Contractor during the
early part of the six-rnnth maintenance period The Contractor in compliance
with the Engineers instructions installed 10 additional 18 diameter CMP
culverts on the Nata-Kazungula road between Kilometer 236 and Kilometer 238
Two additional pipes were installed at Kilometer 6+540 on the Chobe River
By-Pass Road Rock was placed on sand fill slopes and at culvert inlets and
outlets to guard against erosion on numerous sections of the Nata-Kazungula
Road and Chobe River By-Pass Road The Contractor maintained the project
until July 19 1977 when a Certificate of Maintenance was issued
C PROTECT SCHDULING AND DELAYS
On October 5 1973 as required by Clause 12 Part II-Conditions of
Particular Application of the Conditions of Contract - the Contractor submitted
his proposed construction schedule for the project The schedule was returned
to the Contractor on October 16 1973 for modifications It was resubmitted
and finally approved on March 19 1974
-9shy
In October 1974 the Contractor presented a revised construction schedule
It was not approved by the Engineer who informed the Contractor that the
actual rate of progress was far below that projected by the schedule and reshy
quested an explanation as to what steps were contemplated to bring progress
on the project up to schedule
On November 6 1974 the Contractor again presented a revised conshy
struction schedule reflecting a completion date beyond the contract period for
completing the Project The Contractor made reference to conditions which
had allegedly caused delays to progress on the Project and stated that claims
would be presented requesting time extension for completion of the Project
The revised schedule was not approved pending presentation by the Contractor
of all supporting details
By the end of December 1974 the Contractor had completed 29 percent
of the work then specified in the Contract as modified by ten change orders
This compared with 55 percent scheduled to be completed according to the
approved progress schedule
On February 27 1975 the Engineer notified the Contractor that progress
was continuing to fall further behind the approved construction schedule and
requested the Contractor to submit in writing his plans for bringing progress
up to schedule in compliance with pertinent provisions of the Contract On Tuly
24 1975 the Contractor again presented a revised construction schedule reflectshy
ing a completion date of August 31 1976 This schedule was accepted by
the Engineer in September 1975 with the provision that acceptance of the
schedule should in no way be construed as an approval for extension of time
for completion of the project
By the end of 1975 the Contractor had completed 63 percent of the work specified in the contract as compared with 73 percent projected in the revised
construction schedule
On March 11 1976 the Contractor presented the 6th revision of the
construction schedule reflecting a completion date of December 31 1976
This schedule is included herein as Figure 2 The schedule was accepted by
the Engineer on March 24 1976 with the provision that acceptance of this
schedule should in no manner be construed as an approval of extension of time
for completing the project
-0shy
LEGEND CONSTRUCTION PROGRESS CHART BOTSWANA-ZAMBIA HIGHWAY
WORK ELEMENT lt I
MOBILIZATION 7 T z ltgt 7gtlt74gtlaquo 7
GENERAL gt gt lt lt+ $ lt2740gt77
SURVEYS
AND SITE CLEARING
PREPARESUGRADE lt gt
7+47
I EARTHWORKS ~kgt1 E ~gt07 gt0gt0 ~laquolt gtgt~lt7laquogt 77gt
BASE COURSE
SURFACE COURSE ~lt 7ltgtlaquoD4
+4 7iA
gt
ltgt7 77 gtlt4lt
P
DRAINAGE I-shy___MAINTENANCEI I _ _ _ _
FACILITIES - -gt 7 7 7 7lt7 ltgttVViV77W7vV~7~
HIGHWAY HARDWARE lt
CHANGE ORDERS AND I
DAY WORKS lt
TOTAL
VII FINANCIAL SUMMARY
As indicated in Section I-B of this report the funds available (from
AID) for the construction of this project were in the amount of U S $16600000
The disbursements of monies for the construction and construction supervision
through May 31 1978 are summarized in Table 3 along with the original esshy
timated amounts for comparison
TABLE 3
Disbursements Through Original Estimated
May 31 1978 Amounts
US $ RandPula US $ RandPula
Construction Costs (Grove International See Table 5) 882317486 310970881 897784200 316082500
Change Orders (From Table 1) 4276898 - 95829606
Supervision of Construction (TAMS) 129796299 - 135468100 -
TOTALS 1016390683 406800487 1033252300 316082500
From original contracts and supplements through May 31 1978
Table 4 presents a summary of final construction costs including
those by Contract Pay Items disbursed to the Contractor (Grove International)
The above listed costs do not include back charges on the loan which
charges are not available to the Engineer
The Contractor has submitted a series of claims requesting extensions
of time and reimbursement for claimed additional costs These claims are
currently under review by the Engineer A supplemental report will be issued
by the Engineer after the Contractors claims have been resolved and will
include any additional costs and time extensions awarded to the Contractor
Assuming an average rate of exchange of 1000 Pula or 1000 Rand
equal to 1350 U S Dollars and neglecting bank charges the approximate
loan balance as of May 31 1978 was U S $940000
-12shy
An average conversion rate of exchange has been used to estimate
the loan balance since the actual rate varied and actual draw-down figures
are not available to the Engineer
At the time of Project commencement the currency of Botswana was
the Rand In August 1976 the Botswana Government changed over from the
Rand to the Pula as the official currency During the course of construction
local currency disbursements have been made to the Contractor in both Rand
and Pula
-13shy
--- =1m =- M Il-- M=M m -
Sheet 1 of 4TABLE 4 - SCHEDULE OF FINAL CONTRACT QUANTITIES
Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount RandPula
No Description Measure Final Quantities US $ RandPula US $
101 Mobilization Lump Sum 10000 57077200 58360600 -0shy
201 Engineers Staff Housing 2-Bedroom House Each 1 3333 1300000 272100 1300000 272100
202 Engineers Staff Housing 3-Bedroom House Each 3 10000 1400000 339300 4200000 1017900
203 Engineers Staff Housing Technicians House Each 4 10000 650000 130100 2600000 520400
204 Engineers Staff Housing Jr Staff Housing Each 16 10000 112500 19600 1800000 313600
205 Moving amp Re-erection of Engineers Staff Housing Each move NOT APPLICABLE
206 Engineers Main Office Lump Sum 10000 1800000 306300
207 Engineers Main Laboratory Lump Sum 10000 2600000 407700
208 Moving amp Re-erection of Engineers Main Office Each Move NOT A P L I CA B L E and Main Laboratory
209 Engineers Forward OfficeLaboratory Each 2 10000 766300 1532600 -0shy
210 Additional Surveying Office Laboratory and Prime Cost 69809 1500000 1047146 -0-Communication Equipment
211 Contractors Expenses and Profit on Percent 69809 25 261787 -0-Prime Cost Item 210
212 Provide and Maintain Vehicles for ihe Engineers Staff Vmonth 304 Vmonth 24000 17100 7296000 5198400
301 Basic Survey and Setting Out km 370590 km 48500 13400 17973600 4965905
302 Clear Heavy Bush Hectare 514075 ha 23200 7500 11926540 3855563
303 Cleat Light Bush Hectare 70053 ha 15500 5000 10858215 3502650
304 Clear Grassy Hectare 1775 ha 12400 4000 2201000 710000
401 Prepare Sand Subgrade for Embankment m2 3335443 m 2 011 006 36689873 20012658
402 Prepare Clay Subgrade for Embankment m2 408450 m 2 023 011 9394350 4492950
501 Construct Standard Embankment i3 865895 m3 117 047 101309715 40697065
3502 Construct Special Embankment m3 254779 m 196 074 49936684 18853646
030 384035 129450503 Excavate Unsuitable Material m3 4315 m3 089
601 Base Course m3 538854 m3 310 120 167044740 64662480
602 Overhaul of Base Course Material m3km 46462 m3kr 028 010 1300936 464620
701 Remove Overburden from Surface Course Borrow Pits m3 260056 m3 060 016 15603360 4160896
702 Surface Course m3 457260 m3 545 210 249206700 96024600
703 Haul of Surface Course Material m3kmn 6572330 m3kr 0102 0034 67037766 22345922
TABLE 4 (Continued) Sheet 2 of 4
Item No Description
Unit of Measure
Total Revised Final Quantities
Contract Unit Price US $ RandPula
Final Revised Contract Amount US $ RandPula
801
802
803
Excavation and Backfill for Cuiverts up to 48 inches in diameter
Excavations for foundations of Culverts 48 inches and over
Backfilling culverts 48 inches and over
m3
m3
m3
558512 m3
94946 m3
322010 m3
480
270
490
330
140
360
2680858
256352
1577849
1843090
132923
1159236
804 Nestable Galvanized Corrugated Metal Pipe 18 inches in diameter 14 USSG
PIPE LM 249963 LM 4380 820 10948379 2049697
END SECTIONS Each 388 each 6660 225 2584080 87300
805 Nestable Galvanized Corrugated Metal Pipe 24 inches in diameter 14 USSG
PIPE LM 28104 LM 5560 1100 1562582 309144
Supply additional 24 inch diam Pipe 114035
END SECTIONS Each 34 each 10200 800 345800 27200
Supply additional End Sections 30600
806 Nestable Galvanized Corrugated Metal Pipe 36 inches in diameter 12 USSG
PIPE LM 19506 LM 10500 1600 2048130 312096
END SECTIONS Each 28 each 27600 2100 772800 58800
807 Nestable Galvanized Corrugated Metal Pipe 48 inches in diameter 12 USSG
PIPE LM 11522 each 13500 2200 1555470 253484
Supply additional 48 inch diam Pipe 10480
END SECTIONS Each 10 each 76200 4300 762000 43000
808 Nestable Galvanized Corrugated Metal Pipe 60 inches in diameter 10 USSG
PIPE LM 48768 LM 20400 2700 9948672 1316736
Supply additional 60 inch diam Pipe 47510
809
810
811
Excavate inlet and outlet drains mitre ditches and roadway ditches
Sand-cement Pitching
Clay slope Protection
m3
m3
m2
477781 m3
276769 m3
NA
110
2300
030
3000
100
525559
636569
-0-
143334
830307
-0shy
Supplied but not installed
mi -blN mN -m~ m ml m min nmlW arm~ nn- a a a a1 al a
TABLE 4 (Continued) Sheet 3 of 4
Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount No Description
812 Supply Nestable Galvanized Corrugated
Metal Pipe 18 inches in diameter 14 USSG
PIPE
END SECTIONS
901 Construct Maintenance Facility Complex
902 Water Pump
903 Contractors Expenses and Profit on Prime Cost Item 902
1001 Road Signs
1002 Guide Posts
1003 Kilometre Posts
Dayworks
TOTAL-SCHEDULE OF QUANTITIES
a
0) CO I CO 2
TAMS Staff Hotel Accommodation
Air Conditioners TCN Houses
CO 3
CO 4
NA (Progress Payment Permanent Material)
Additional TCN Housing
SUB-TOTAL
CO 5 POL Escalation Cost
CO 6 POL Escalation Cost
CO 7 POL Escalation Cost
SUB-TOTAL
LESS OVERPAYMENT
TOTAL POL ESCALATION COST
CO 8 Interim Allowance (Wage)
CO 9 Wage Escalation Cost
SUB-TOTAL
LESS OVERPAYMENT
TOTAL WAGE ESCALATION COST
Measure
LM
Each
Lump Sum
PC Sum
25
Each
Each
Each
As directed
Each
Final Quantities
238 LM
0 each
98
284 each
900 each
182 each
100
100
100
NA
6
100
100
100
100
100
US $
3400
6700
8520
As Billed
650000
As Shown
As Shown
As Shown
As Shown
As Shown
RandPula
900000
1000
1450
1500
130100
US $
809200
-0-
13014800
-0-
-0-
2419680
-0-
-0-
5999421
882317486
376898
3900000
4276898
RandPula
-0shy
-0shy
7308700
255223
63806
284000
1305000
273000
-0shy
310970881
842138
5307
780600
1628045
575601
1815344
77277517
79668462
1661539
78006923
297802
16022556
16320358
125720
16194638
TABLE 4 (Continued)
Item No Description
Unit of Measure
Total Revised Final Quantities
Contract Unit Price US $ RandPula
Sheet 4 of 4
Final Revised Contract Amount US $ RandPula
CO 10
CO 11
CO 12
Road Reserve cleared way Chobe River By-pass (included under items 302 303 and 304)
Importation Additional Sheeps foot roller (included under item 101)
Minor realignment of roadway at Nata
TOTAL CONSTRUCTION COST
100
100
100
886594384 406800487
ishy
I I I I I I I I
APPENDIX A
I CONSTRUCTION EQUIPMENT
I I I I U I I I I I
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT
I Descqription
2 Chevrolet Impala Sedan
5 jeep-Wagoner
7 jeep-Wagoner
1 Chevrolet Vega
23 Chevrolet Pickup
19 Mack Tractor (T675-8W)
2 Chevrolet Flat Bed
5 Mack-Platform Stake (T426-3500)
1 Mack-2000 Gal Fuel (T426-3500)
4 Mack Dump Truck 10 cy
2 Chevrolet Dump Truck 5 cy
1 Mack-Birmingham Tandum Lowboy Trailer
2 Mack-Gindy 25 Ton Tandum Semi Trailer
8 Heil- P3S 303 cy Dump Trailer
I 7 Fruehauf-TEO-F3-R 10000 Gal Tanker
5 Fruehauf-TEO-F2-R 6500 Gal Tanker
5 Fruehauf-Tandum Axle Dolly
2 Barko 14000 Telescopic Crane
6 Cobey 1062 Wagon Trailer
1 Cedarapids 443 Commander Crusher
1 Peerless Portable Base Stabilisation Plant
2 Atlantic International Water Treatment Plant
6 Caterpillar 631-B TractorS631-B Scraper
7 Caterpillar D8-H Dozer
2 4
Caterpillar D9- Dozer Caterpillar D6-C Dozer
2 Caterpillar 12-F Grader
5 Caterpillar 14-E Grader
U A-i
1
I
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (Cont)
Quantity
4
1
4
11Raygo
1
S1 2
ICaterpillar-200KW 3
1
1
1
1
1
3
2 2
2
I
1
2
2
I
1 2
8
1
j 8
1 4
9
1
Description
Caterpillar 966 Loader
Trojan 4000 Loader
Raygo 400A Compactor Vibrator
410A Compactor Vibrator
Vibro Plus Vibrating Sheepsfoot Roller
Bros 10000 Compactor
Bros 6000 Compactor
Generator Caterpillar - 125KW Generator
Little Reddevil Generator
Kholer 3KW Generator
Kholer 2KW Generator
Detroit Diesel Generator (2D-32)
Kholer Generator (5CKM61)
Hobart GR-3 03 Welders w trolley
Worthington 365 Compressor Worthington 160 Compressor
Kellypower Tamper
John Deere 2700 Disc Harrow10 Cut
ohn Deere 1630 Disc Harrow 7 Cut
Worthington WS-55 Rock Drill
Alemite Portable Service Station
Graco Lube Ranger
Worthington Wagon Drill
Layne Bowler Deep Well Pump
Layne Bowler Pump only
4 Centrifugal Pump
2 Centrifugal Pump
Columbian Steel Water Tanks 20000 US Gal
A-2
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (contd)
Quanti
1I Description
Caterpillar Parallel Shank Ripper
2 Fleco Blade Rake
4 Chainsaw
3 Gardner-Denver Compressor
5 Aerotron Radio Transmitters $1203
7 Aerotron Radio Receivers $2 10
16 SSB Radio Transceivers $1340
8 Auxilliary Radio Transceivers $1340
2 Cevy 4 x 4 Pickup Truck 8 Chevy 2 x 4 Pickup Truck
1 L B Smith Cone Crusher
2 Ford 4 x 4 (1164-14C Tractor)
2 Bros Sheepsfoot Roller
1 Hyster Towed Vibratory Compactor
During 1975 and 1976 the Contractor added the following listed equipment
1 Caterpillar No 14 Motor Grader
1 Caterpillar No 966 Loader
1 Trojan No 4000 Loader
1 Cone Crushing Plant 3 ft Standard Fine Bowl with 4 Deck Screens
4 Conveyor Units
A-3
I 1 I I I U I I
APPENDIX B
I I SOILS AND MATERIALS
I I 1 I I I I I 1
APPENDIX B
SOILS AND MATERIALS
(a) General
The road pavement is composed basically of two layers the surface
course and base course overlaying a compacted subgrade or embankment
The sources and volumes of the surface course and base course materials
are indicated in the Materials Utilization Diagrams included as Figures B-i
through B-4
(b) Subgrade
The subgrade soil consists primarily of aeolian fine sand except
for approximately 36 kilometers of the road for which the subgrade is a pan material consisting of clay In the pan areas special 1 Om thick
embankments were constructed with plasticity and fineness control of material
The subgrade and embankment soils were compacted to a minimum of 90
of modified AASHTO compaction The measured mean relative compaction
obtained immediately after compaction of the subgrade was 935 of the modified AASHTO maximum density
(c) Base Course
The majority of the base course materials are derived from aeolian deposits ie fine sand with a trace to some silty clay The
remaining base bourse approximately 15 of the total was obtained from pits having a large component of gravel The 15cm thick base
course is bank run or blended material for which the amounts of fines
and plasticity were controlled The base course materials were obtained from 123 base borrow pits and compacted to a minimum 95 of modified AASHTO density The measured mean relative compaction
directly after construction was 96 of the modified AASHTO maximum
density
(d) Surface Course
The 15cm thick surface course is well graded sandy gravel with
some silty clay fraction The materials for the road segment from
Kilometer 0+000 to Kilometer 173+000 are derived from calcrete deposits
while the materials for the remaining portion are derived from weathered
3-1
bedrock The surface course has controlled gradation plasticity and
durability to obtain sufficient strength to reduce ravelling to a minimum
particularly during the dry season and to resist the wear of traffic
Surface course materials have been obtained by screening crushing
and blending materials from 9 borrow areas and were compacted to a
minimum of 98 of modified AASUTO maximum dry density The comshy
posite properties for each borrow pit are indicated in the Average
Gradation Ourvesincluded as Figures B-5 through B-13 Directly
after construction of the surface course the measured mean relative
compaction was 100 of the modified AASHTO maximum density
B-2
N A TA K A ZUN GU LA RO0A D 70 033 90 CC
00 00 0 0 0+I 03- 30L K
0 I I
M 3 100 0002L [2
_
MATERIALS UTILIZATION DIAGRAM Fiure -I
NATA - KAZUNGULA ROAD
+--- 121
y T
MATERIALS UTILIZATION DIAGRAM Fgure R-Z
NAT A - KAZ UN GULA ROAD
07 2 230K300 220 220 232 252
I 3 3 2
MATERIALS UTILIZATION DIAGRAM Figure 2-3
itLT-m
CHOBE RIVER BY-PASS ROAD 02__ Q___ 0 60 40 - 0 50 0 i
-F-CEL
-Tl J-II II
MATERIALS UTILIZATION DIAGRAM Figure B-4
3 SIEVE ANALYSIS SMI~ia VIII
IY UN In~ VI STAISRS SIEVE NUMBfh SUE9 - usuLguNuus O-- aoIiUl- I1
11I a to to 0 i oIIIa lf I
II
SN Cu ye B
II N
o
i B _ ___~ N II 1 l s - Curi e At-
I 2 I a 6 4 2 i5 4 3 2 a -
GRAIN I IZE MILTERS
SILT AND CLAY SOILS GRAVEL SAND
I NUMBE1RSAMPLE DEPTH LL KIE IPTIONIELEV P1 ECIT
A Composit 38 19 CrusherAverage Runof 192 samples
B Composit 33 17 Surface Course Blend asAverage of 236 samples placed
MDD 1960 kgm Los Angeles Abrasion = 42 Average Blend Added 15=
REPUBLIC OF BOTSWANA TI PPETTS-ASSETT-NcCAIThY-STRATTOU MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY BOTSWANA-ZAMBIA GRAIN SIZE DISTRIBUTION BY DmArTE Q76HIGHWAY j PIT 2A DOi FIGURE B-5
E ANLYSISSIEVE NALYSIS NI
OPEING - In jS PhIMS-SEVE iNRh3EN son - MILLIMETER
V11 6plusmn SSIEVE
6 i S 0-4 0 10 miUS) 3055 3 001mesa a
9 I I I - -
Crye B
S bull
1TCrii INN20 1 e A- NI deg I FIK 46591 2 a045 4 2 1115 5 2 6
GRIISZ IN MILLIMETERS
COACE iE NtIUM FI SILT AD CLAY SOILSGRAVEL SAND
5r IBSAMPLE DEPTH ELEV LLP1
A Composite 28 10 Crusher Run Average of 229 samples
B Composite 28 11 Surface Course Blend as Placed Average of 58 samples
2050 kgm3 Averaoe Blend Added shy
TIPPETTS-ASETT-NCCARTIY-STATTONREPUBLIC OF BOTSWANA NEW YORK NY
MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS
BRAIN SIZE DISTRIBUTION BY NCZ jAATE9 876BOTSWANA-ZAMBIA
HIGHWAY PIT 14 amp 14A OWN FIGURE B-6
i
S ANALYSIS 01 ANALYSIS
SIEVE - n -IIII- SIZ-MII- - IN i
It a s 1
Ue a -- e B
- 1 -I-[_I - I I I
6l51 10 8 $514 1 O is 05I I 21 8GANSZNILMTR OA RE Filo 9OA-1i 1DI UM F log S ILT AND CLAY SO ILS
GRAVEL nSAND
E--l I UNEASMPLEDEPlTH ELEV LL P1 KWKIPTION
A Composite 36 19 Crusher Run
Average of 116 Samples
B Composite 36 15 Surface Course Blend Average of 138 samples
H GHWA E SA 18 SILT ANDURCLA-SIL
3kgm Los Angeles Abrasion 28
Av agau Pnd AAd = 907 ITI UETT$-ABBTT-NcentcentARTNY-STRATTON
NEW YORK NY
REPUBLIC OF BOTSWANA
MINISTRY OF WORKS amp COM24UNICATIONSIT NINEERS1
I I MGIELI7 I 1 8AIIGIWAE
I
4
SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU
V 1 Oe 001l
- -r--I-I -- I
S E- -IN S
KI zz7llfl$zIIIti z I
low560
20
2
IGRAIN SIZE IN MILLIMETERS
COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS
GRAVEL SAND
SAMP DEPTH ELEV L P1 0NBERIIPTI
A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples
B Composit( 28 13 Surface Course Blend as Placed
Average of 85 samples
Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA
REPUBLIC OF BOTSWANA TI EfTTS-AIETT-NCARTY-STRATTOi ITTqTPI yen O WOVQ A n rn WTraTTn~lz ENGINEERS NEW YOlK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8
-D IUR IB
II SIEVE ANALYIIS 1411 I LYIlMll
[urn $11min - I I ITUSE IVV I - mampINimums1 -l0 n 001
a1 i 4 is s 0 aL w I 2 0665S a a 4 i 0i
-7sl
96---
I RI IE IN M IEER
CfliEI FIN g o au SIT SILFIN M40 5C o432 14593 ry B6
ver 7 samples
NUMBE NERPI
Ay I GRAIN SIZE IN MILLIMETR
5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND
A Q A- Aii dd d~A
IMUBEIRIIIIPIi
3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables
B Composit 26 13 Surface Course BlendU as Placed
Average of 79 samples
AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =
REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9
SIEVE ANALYSIS IMmv na awLYoia
SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I
I- 01 001
e---__
Ir1 -NIP_]
20
OA
$05 9 2
E
I
86543
I
7tN
2 1 65
_OAlEED t
5 2
FN
I
GRAIN SIZE IN MILLIMETERS
1 111I
NU BE GRAVEL
COARSE
I
MEDIUM
I SAND
FSILT AND CLAY SOILS
SAMPLE4 DEP EEY 1 SCBI1PTIORI
A
B
Composite
Composite
38
26
17
13
Crusher Run Basaltic Aggregate
Average of 176 samples
Surface Course Blend -s Placed Average of 58 samples
Average MDD = 2135 kgm Los Angeles Abrasion = 38
Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY
WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971
3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10
SIEVE ANIALYSIS lNVINI1111 ANALYSIS
I EV OPE IN - INI8 TOSIIEENN1-MLII
I
I - - i ii 0
I GRI SIZEto N OILS 1
I ANDLI IS
G VELIZE I
IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL
-APL ESN
DEPTH ELEY LL PI DESCRIPTIONNUSMBE
3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples
B Composite 26 13 Surface Course Blend as Placed Average of 58 samples
Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34
Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY
BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11
___ I
SIEVE ANALYSIS W11 ANKEm SIS
SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS
01 001
sodego
i i
U Ae
6 559 2 a65 3 2 1 6532 S
II GRAIN SIZE INMILLIMETERS
=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL
GRAVEL SN
I SAMPE DEPTH ELEV LL P)S DESCRIPTION
A omposite 28 10 Crusher Run
SAverage of 72 samples
B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples
Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20
REPUBLICUINISTRY 0OF OF
BOTSWANA WORKS amp COMMUNIGTIONS
TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12
I
SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM
-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U
I _
I1li
Ia _ Cu ve
N IC A11
IQI II
1 IG S IIIMETE
I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND
SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION
A Composite 34 15 Crusher Run Average of 74 samples
B Composite 29 12 Surface Course Blend as Placed
Average of 42 samples
MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15
REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA
ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N
NEW sy cKA
YORK NYT E-2 5 1 7 7
HIGHWAY PIT 32A Mwe FIGURE B-13
I I I I I I I I
APPENDIX C
I WATER WELL LOCATIONS
I I I I I I I I I
APPENDIX C WATER WELL LOCATIONS
WELL NO 3
Location Km 171 Lt of centerline 200 meters
Drill - 6 x 392
Ream - 8 x 92
Case - 6 x 84
Test - 24 Hours - 276
Pump 6000 G P H
Total depth - 392
Pumped at 150
24 Hr Drawdown - 3
Water Good
WELL NO 4
Location Km 175 - Lt of centerline 100 meters
Drill - 6 x 380
Ream - 8 x 82
Case - 7 x 82
Test - 276
Pump 1800 G P H
Total depth - 380
Pumped at 200
Drawdown 24 Hr - 100
Water Good
WELL NO 5 (Govt No 2436
Location Km 178 - Lt of centerline 115 meters
Test -276
Pump - 1400 G P H
Total depth - 160
Pumped at 140
24 Hr Drawdown - 60
Water Good C-1
WELL NO 6
Location Km 183 - Lt of centerline 60 meters
Drill - 6 x 436
Ream - 8 x 86
Case - 7 x 86
Test - 276
Pump - 500 G P H
Total depth - 436
Pumped at 250
24 Hr Drawdown - 150
Water Good
WELL NO 7 - (Govt No 2435)
Location Km 189 - Rt of centerline 100 meters
Clean amp Test
Pump - 6000 G P H
Pumped at 140
24 Hr Drawdown - 10
Water Good
WELL NO 14
Location Km 252 - Lt of centerline 100 meters
Drill - 6 x 250
Ream - 8 x 53
Case - 6 x 53
Test - 276
Pump - 6000 G P H
Total depth - 250
Pumped at 150
24 Hr Drawdown - 6
Water Good
C-2
WELL AT KM 256 MAINTENANCE FACILITY NO 3
Location Km 256 - Lt of centerline 200 meters
Depth - 100 feet
Water Rest Level - 42 feet
Depth Pump Set - 70 feet
24 Hr Test - 1800 G P H
WELL NO 15
Location Km 245 - Rt of centerline 40 meters
Drill - 6 x 260
Ream - 8 x 54
Case - 54
Test -276
Pump - 1500 G P H
Total depth - 260
Pumped at 200
24 Hr Drawdown - 140
Water Good
WELL NO 16 Location Km 236 -Rt of centerline 30 meters
Drill - 6 x 250
Ream - 8 x 22
Case - 6 x 22
Test - 276
Pump -6000 G P H
Total depth - 288
Pumped at 150
24 Hr Drawdown - 10
Water Good
C-3
WELL NO 17
Location Km 224 - Rt of centerline 30 meters
Drill - 10 x 89
Case - 8 x 85
Drill- 8x 43
Drill - 6 x 38
Case -6 x 132
Test - 276
Pump -2000 G P H
Total Depth - 170
Pumped at 100
24 Hr Drawdown - 11
Water Good
WELL NO 18
Location Km 217 - Lt of centerline 200 meters
Drill -i0 x 70
Case - 7 x 70
Drill - 7 x 52
Drill - 6 x 88
Case - 6 x 122
Test - 276
Pump 2400 G P H
Total depth - 210
Pumped at 200
24 Hr Drawdown - 140
Water Good
C-4
WELL NO 19
Location Km 213 - Lt of centerline 100 meters
Drill - 10 x 44
Case - 8 x 40
Drill - 8 x 76
Drill 6 x 130
Case - 6 x 120
Test - 276
Pump - 6000 G P H
Total depth - 210
Pumped at 60
24 Hr Drawdown - 10
Water Good
WELL NO 20
Location Km 143 - Rt of centerline 100 meters
Drill - 10 x 240
Case - 7 x 220
Drill -6 x 378
Case - 6 x 240
Case - 5 x 240
Test - 276
Pump -1500 G P H
Total depth - 618
Pumped at 460
24 Hr Drawdown - 105
Water slightly salty to taste but drinkable
C-5
WELL NO 23
Location Km 139 - Lt of centerline 100 meters
Drill - 12 x 290
Place amp Extract Case - 10 x 290
Drill - 8 x 30
Drill - 6 x 40
Case - 8 x 290
Case - 6 x 320
Test - 276
Pump - 1200 G P H
Total depth - 360
Pumped at 330
24 Hr Drawdown - 120
Water salty
WELL NO 24
Location Km 135 - Lt of centerline 500 meters
Drill - 12 x 270
Drill - 10 x 10
Case - 10 x 270
Drill -8 x 30
Case - 8 x 290
Case -6 x 310
Case - 5 x 320
Test -276
Pump -4000 +G P H
Total depth - 320
Pumped at 270
24 Hr Drawdown - 2
Water Salty
C-6
I
5
WELL KM 205 MAINTENANCE FACILITY NO 2
Location Km 105 - Lt of centerline 40 meters
Depth - 302 feet
~ Water Rest Level - 82 feet
Depth Pump Set - 150 feet
48 Hr Test - 3000 + G P H
WELL NO 26
Location Km 82 - Lt of centerline 100 meters
Drill - 12 x 145
5 -8 x145
Drill - 8 x 23
-Case
I Drill - 7 x 10
Case - 7 x 168
I Case - 6 x178
Test - 276
Pump - 1200 G P H
Total depth - 306
I Pumped at 140
24 Hr Drawdown - 35
I Water Good
C
I 0-7
WELL NO 27
Location Km 77 - Lt of centerline 100 meters
Drill - 12 x 174
Install amp Extract Case - 10 x 174
Case - 8 x 174
Drill - 9 x 68
Drill - 8 x 64
Case - 7 x 242
Case - 6 x 306
Test - 276
Pump - 4000 + G P H
Total Depth - 306
Pumpe at 240
24 Hr Drawdown - 0
Water Good
WELL NO 28- (Govt No 2465)
Location Km 63 - Rt of centerline 100 meters
Clean amp Extract Case - 300
Ream - 10 x 98
Ream - 8x 27
Ream - 6 x 12
Case - 8 x 98
Case - 6 x 125
Test - 276
Pump - 1000 + G P H
Total depth - 137
Pumped at 130
24 Hr Drawdown - 33
Water Good
C-8
WELL NO 30
Location Km 47 - Rt of centerline 400 meters
Drill - 12 x 132
Case - 10 x 89
Install amp Extract Case - 12 x 43
Drill - 10 x 117
Case - 7 x 242
Drill - 6 x 183
Install amp Extract Case - 6 x 408
Test - 276
Pump - 1000 G P H
Total depth - 408
Pumped at 160
24 Hr Drawdown - 77
Water Salty
WELL NO 31
- Lt of centerline 200 metersLocation Km 44
Drill - 12 x 110
Case - 10 x 100
Drill - 10 x 142
Case 8 x 142
Drill - 8 x 250
Case 7 x 392
Drill - 6 x 78
Test - 276
Pump - 3000 G P H
Total depth - 502
Pumped at 160
24 Hr Drawdown - 44
Water Salty
C-9
WELL NO 32
Location Km 42 - Lt of centerline 100 meters
Drill - 12 x 108
Case - 10 x 108
Drill - 10 x 212
Drill - 8 x 120
Case - 6 x 340
Case - 8 x 182
Test - 276
Pump - 3000 + G P H
Total depth - 448
Pumped at 160
24 Hr Drawdown - 20
Water Salty
WELL NO 34
Location Km 35 - Lt of centerline 200 meters
Drill - 12 x 230
Install amp Extract Case - 10 x 230
Drill - 8 x 30
Case -6 x 260
Drill - 6 x 160
Case -5 x 324
Case - 8 x 20
Test - 276
Pump -1000 + G P H
Total depth - 420
Pumped at 150
24 Hr Drawdown - 100
Water Salty
C-10
WELL NO 36
Location Km 7 N E along old track from Km 63
Drill - 12 x 180
Case - 10 x 180
Drill - 10 x 231
Case - 8 x 211
Drill- 8x 254
Case - 6 x 245
Test -276
Pump -4000 + G P H
Total depth - 265
Pumped at 180
24 Hr Drawdown - 0
Water Good
C-11
I 3 I 1 I I I I B j APPENDDC D
SYNOPSIS 0 KEY CORRESPONDENCE
3 DURING CONSTRUCTION
I pound I I I 1 I I
On September 1 1973 the Contractor confirmed the
estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts
On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project
On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be
obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated
On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine
On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation
On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension
On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension
On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval
On October 15 1973 the Engineer returned the construction progress schedule for correction
On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim
D-I
On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor
On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project
On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25
On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter
On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents
On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract
On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised
On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading
On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule
On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request
On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period
D-2
On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report
On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material
On August 19 1974 the Contractor submitted an updated construction progress schedule for approval
On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases
On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor
On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor
On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project
On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course
On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country
On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course
On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions
On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule
On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress
D-3
On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract
On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana
On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor
On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion
On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations
On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases
On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season
On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees
On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections
On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project
On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course
On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project
On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract
D-4
October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request
On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor
On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620
On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project
On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y
completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense
On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted
On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project
On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim
On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic
On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor
On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976
D-5
On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time
On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares
On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material
On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500
On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor
On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula
On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana
OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected
On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road
On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road
Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10
On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued
On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced
On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091
On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091
Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued
D-6
I I IUUU U U UU I U
E PROJECT PHOTOGRAPHS
I IIIU U I
I Crushing Plants Surface Course
Pit 2A
Pug Mill Blending Surface Course
Pit 25A
II Surface Course
Pit 25A
UURYPTOERTOSE Pug Mil Blending
Road Reserve Bush Clearing
Km 242
U
Embankment Construction Km 287
IN
Road Construction Water Supply
Km 189
ROADWAY UNDER CONSTRUTION
II
E-2
Stockpiling Material Base Course
Special Embankment Construction Km 232
Watering of Embankment Km 257
ROADWAY UNDER CONSTRUCTION E-3
Culvert Assembly
Twin Culvert with Sand-Cement Pitching
Multiple Culverts with Sand-Cement Pitching
CULVERT INSTALLATIONS E- 4
AT Km 25
AT Km 194
Emergency Landing Strip Kra 2605
FINISHED ROADWAY E- 5
AT Km 286
AT Chobe By-Pass Junction Km 297
I Chobe By-Pass Road Near Ngoma Bridge
E-6FINISHED ROADWAY
During late October construction of housing shops offices wareshy
houses and ancillary facilities commenced at the relocated main camp site
The camp facilities were substantially completed by the end of March 1974
Temporary satellite camps were later established at Pandamatenga at Kilometer
105 and at Kilometer 63 on the Nata-Kazungula segment of the project
Mobilization of construction equipment personnel material and supplies
began in early October 1973 and continued through April 1974
During the remainder of 1973 the construction efforts were concentrated
on construction of the main camp site A small amount of clearing grubbing
and earthwork was accomplished on the Chobe River By-Pass Road and on the
northern end of the Nata-Kazungula road
1 Principal Construction Accomplishments During 1974
Clearing and Grubbing - 5366 hectares completed between
Kilometer 297 and Kilometer 169 on the Nata-Kazungula segment
of the project
- Earthworks - excavation and borrow quantities came to a total
of approximately 506500m with the major portion of this work
performed between Kilometer 297 and Kilometer 196 on the Nata-
Kazungula segment of the project
- Pipe culverts - installed 59 pipes ranging in size from 18 to 60
diameter for a total of 1129 linealmeters between Kilometer 297
and Kilometer 196 on the Nata-Kazungula segment and from
Kilometer 0+000 to Kilometer 3+500 on the Pandamatenga Access
Road
Base Course - approximately 113600m placed between Kilometer
297 and Kilometer 197 on the Nata-Kazungula segment and from
Kilometer 0+000 to Kilometer 2+350 on the Pandamatenga Access
Road
Surface Course - approximately 19000m was placed between
Kilometer 292 and Kilometer 273+500 on the Nata-Kazungula segment
5-7shyI
2 Principal Construction Accomplishments During 1975
- Clearing and Grubbing - 634 hectares completed between
Kilometer 169 and Kilometer 2+000 on the Nata-Kazungula
segment between Kilometer 0+000 and Kilometer 14+000
on the Chobe River By-Pass segment and from Kilometer 2+350
to Kilometer 5+275 on the Pandamatenga Access Road
- Earthworks - excavation and borrow quantities came to a total
of 379145m3 with the major share of this work performed
between Kilometer 196 and Kilometer 49+000 on the Nata-
Kazungula segment and on the Pandamatenga Access Road
- Pipe Culverts - 69 pipes were installed ranging in size from
18 to 60 in diameter for a total of 1308 lineal meters
between Kilometer 200 and Kilometer 65 on the Nata-Kazungula
segment and from Kilometer 0+000 to Kilometer 5+200 on the
Pandamatenga Access Road
Base Course - approximately 219000m was placed between
Kilometer 197 and Kilometer 57 on the Nata-Kazungula segment
and on the entire 52 kilometers of the Pandamatenga Access
Road
Surface Course - approximately 177 000m of surface material
placed between Kilometer 273 and Kilometer 130 on the Nata-
Kazungula segment
3 Principal Construction Accomplishments During 1976
- Clearing and Grubbing - completed 2188 hectares between
Kilometer 2+000 and Kildmeter 0+000 and between Kilometer
297+300 and Kilometer299+600 on the Nata-Kazungula segment
and between Kilometer 14+000 and Kilometer 65+000 on the
Chobe River By-Pass segment which completed this item of
work
- Earthworks - excavation and borrow quantities came to a total
of 235092m which completed this item of work
-8shy
Pipe Culverts - 36 pipes were installed ranging in size from
18 to 48 diameter for a total of 973 lineal meters The
major share of this work was performed on the Chobe River
By-Pass segment
Base Course- 206120m3 was placed on the Nata-Kazungula
road between Kilometer 57+600 and Kilometer 0+000 and between
Kilometer 297+300 and Kilometer 299+588 and on the Chobe River
By-Pass road between Kilometer 0+000 and Kilometer 65+048
Surface Course - 260878m placed between Kilometer 130+000
and Kilometer 0+000 on the Nata-Kazungula road and between
Kilometer 0+000 and Kilometer 65+048 on the Chobe River By-Pass
Road
4 Principal Construction Accomplishments During 1977
The Contractor continued to work on final clean-up and corrective
work in accordance with the punch list provided by the Engineer On January
19 1977 the Completion Certificate was issued with a list of outstanding
deficiencies attached These were rectified by the Contractor during the
early part of the six-rnnth maintenance period The Contractor in compliance
with the Engineers instructions installed 10 additional 18 diameter CMP
culverts on the Nata-Kazungula road between Kilometer 236 and Kilometer 238
Two additional pipes were installed at Kilometer 6+540 on the Chobe River
By-Pass Road Rock was placed on sand fill slopes and at culvert inlets and
outlets to guard against erosion on numerous sections of the Nata-Kazungula
Road and Chobe River By-Pass Road The Contractor maintained the project
until July 19 1977 when a Certificate of Maintenance was issued
C PROTECT SCHDULING AND DELAYS
On October 5 1973 as required by Clause 12 Part II-Conditions of
Particular Application of the Conditions of Contract - the Contractor submitted
his proposed construction schedule for the project The schedule was returned
to the Contractor on October 16 1973 for modifications It was resubmitted
and finally approved on March 19 1974
-9shy
In October 1974 the Contractor presented a revised construction schedule
It was not approved by the Engineer who informed the Contractor that the
actual rate of progress was far below that projected by the schedule and reshy
quested an explanation as to what steps were contemplated to bring progress
on the project up to schedule
On November 6 1974 the Contractor again presented a revised conshy
struction schedule reflecting a completion date beyond the contract period for
completing the Project The Contractor made reference to conditions which
had allegedly caused delays to progress on the Project and stated that claims
would be presented requesting time extension for completion of the Project
The revised schedule was not approved pending presentation by the Contractor
of all supporting details
By the end of December 1974 the Contractor had completed 29 percent
of the work then specified in the Contract as modified by ten change orders
This compared with 55 percent scheduled to be completed according to the
approved progress schedule
On February 27 1975 the Engineer notified the Contractor that progress
was continuing to fall further behind the approved construction schedule and
requested the Contractor to submit in writing his plans for bringing progress
up to schedule in compliance with pertinent provisions of the Contract On Tuly
24 1975 the Contractor again presented a revised construction schedule reflectshy
ing a completion date of August 31 1976 This schedule was accepted by
the Engineer in September 1975 with the provision that acceptance of the
schedule should in no way be construed as an approval for extension of time
for completion of the project
By the end of 1975 the Contractor had completed 63 percent of the work specified in the contract as compared with 73 percent projected in the revised
construction schedule
On March 11 1976 the Contractor presented the 6th revision of the
construction schedule reflecting a completion date of December 31 1976
This schedule is included herein as Figure 2 The schedule was accepted by
the Engineer on March 24 1976 with the provision that acceptance of this
schedule should in no manner be construed as an approval of extension of time
for completing the project
-0shy
LEGEND CONSTRUCTION PROGRESS CHART BOTSWANA-ZAMBIA HIGHWAY
WORK ELEMENT lt I
MOBILIZATION 7 T z ltgt 7gtlt74gtlaquo 7
GENERAL gt gt lt lt+ $ lt2740gt77
SURVEYS
AND SITE CLEARING
PREPARESUGRADE lt gt
7+47
I EARTHWORKS ~kgt1 E ~gt07 gt0gt0 ~laquolt gtgt~lt7laquogt 77gt
BASE COURSE
SURFACE COURSE ~lt 7ltgtlaquoD4
+4 7iA
gt
ltgt7 77 gtlt4lt
P
DRAINAGE I-shy___MAINTENANCEI I _ _ _ _
FACILITIES - -gt 7 7 7 7lt7 ltgttVViV77W7vV~7~
HIGHWAY HARDWARE lt
CHANGE ORDERS AND I
DAY WORKS lt
TOTAL
VII FINANCIAL SUMMARY
As indicated in Section I-B of this report the funds available (from
AID) for the construction of this project were in the amount of U S $16600000
The disbursements of monies for the construction and construction supervision
through May 31 1978 are summarized in Table 3 along with the original esshy
timated amounts for comparison
TABLE 3
Disbursements Through Original Estimated
May 31 1978 Amounts
US $ RandPula US $ RandPula
Construction Costs (Grove International See Table 5) 882317486 310970881 897784200 316082500
Change Orders (From Table 1) 4276898 - 95829606
Supervision of Construction (TAMS) 129796299 - 135468100 -
TOTALS 1016390683 406800487 1033252300 316082500
From original contracts and supplements through May 31 1978
Table 4 presents a summary of final construction costs including
those by Contract Pay Items disbursed to the Contractor (Grove International)
The above listed costs do not include back charges on the loan which
charges are not available to the Engineer
The Contractor has submitted a series of claims requesting extensions
of time and reimbursement for claimed additional costs These claims are
currently under review by the Engineer A supplemental report will be issued
by the Engineer after the Contractors claims have been resolved and will
include any additional costs and time extensions awarded to the Contractor
Assuming an average rate of exchange of 1000 Pula or 1000 Rand
equal to 1350 U S Dollars and neglecting bank charges the approximate
loan balance as of May 31 1978 was U S $940000
-12shy
An average conversion rate of exchange has been used to estimate
the loan balance since the actual rate varied and actual draw-down figures
are not available to the Engineer
At the time of Project commencement the currency of Botswana was
the Rand In August 1976 the Botswana Government changed over from the
Rand to the Pula as the official currency During the course of construction
local currency disbursements have been made to the Contractor in both Rand
and Pula
-13shy
--- =1m =- M Il-- M=M m -
Sheet 1 of 4TABLE 4 - SCHEDULE OF FINAL CONTRACT QUANTITIES
Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount RandPula
No Description Measure Final Quantities US $ RandPula US $
101 Mobilization Lump Sum 10000 57077200 58360600 -0shy
201 Engineers Staff Housing 2-Bedroom House Each 1 3333 1300000 272100 1300000 272100
202 Engineers Staff Housing 3-Bedroom House Each 3 10000 1400000 339300 4200000 1017900
203 Engineers Staff Housing Technicians House Each 4 10000 650000 130100 2600000 520400
204 Engineers Staff Housing Jr Staff Housing Each 16 10000 112500 19600 1800000 313600
205 Moving amp Re-erection of Engineers Staff Housing Each move NOT APPLICABLE
206 Engineers Main Office Lump Sum 10000 1800000 306300
207 Engineers Main Laboratory Lump Sum 10000 2600000 407700
208 Moving amp Re-erection of Engineers Main Office Each Move NOT A P L I CA B L E and Main Laboratory
209 Engineers Forward OfficeLaboratory Each 2 10000 766300 1532600 -0shy
210 Additional Surveying Office Laboratory and Prime Cost 69809 1500000 1047146 -0-Communication Equipment
211 Contractors Expenses and Profit on Percent 69809 25 261787 -0-Prime Cost Item 210
212 Provide and Maintain Vehicles for ihe Engineers Staff Vmonth 304 Vmonth 24000 17100 7296000 5198400
301 Basic Survey and Setting Out km 370590 km 48500 13400 17973600 4965905
302 Clear Heavy Bush Hectare 514075 ha 23200 7500 11926540 3855563
303 Cleat Light Bush Hectare 70053 ha 15500 5000 10858215 3502650
304 Clear Grassy Hectare 1775 ha 12400 4000 2201000 710000
401 Prepare Sand Subgrade for Embankment m2 3335443 m 2 011 006 36689873 20012658
402 Prepare Clay Subgrade for Embankment m2 408450 m 2 023 011 9394350 4492950
501 Construct Standard Embankment i3 865895 m3 117 047 101309715 40697065
3502 Construct Special Embankment m3 254779 m 196 074 49936684 18853646
030 384035 129450503 Excavate Unsuitable Material m3 4315 m3 089
601 Base Course m3 538854 m3 310 120 167044740 64662480
602 Overhaul of Base Course Material m3km 46462 m3kr 028 010 1300936 464620
701 Remove Overburden from Surface Course Borrow Pits m3 260056 m3 060 016 15603360 4160896
702 Surface Course m3 457260 m3 545 210 249206700 96024600
703 Haul of Surface Course Material m3kmn 6572330 m3kr 0102 0034 67037766 22345922
TABLE 4 (Continued) Sheet 2 of 4
Item No Description
Unit of Measure
Total Revised Final Quantities
Contract Unit Price US $ RandPula
Final Revised Contract Amount US $ RandPula
801
802
803
Excavation and Backfill for Cuiverts up to 48 inches in diameter
Excavations for foundations of Culverts 48 inches and over
Backfilling culverts 48 inches and over
m3
m3
m3
558512 m3
94946 m3
322010 m3
480
270
490
330
140
360
2680858
256352
1577849
1843090
132923
1159236
804 Nestable Galvanized Corrugated Metal Pipe 18 inches in diameter 14 USSG
PIPE LM 249963 LM 4380 820 10948379 2049697
END SECTIONS Each 388 each 6660 225 2584080 87300
805 Nestable Galvanized Corrugated Metal Pipe 24 inches in diameter 14 USSG
PIPE LM 28104 LM 5560 1100 1562582 309144
Supply additional 24 inch diam Pipe 114035
END SECTIONS Each 34 each 10200 800 345800 27200
Supply additional End Sections 30600
806 Nestable Galvanized Corrugated Metal Pipe 36 inches in diameter 12 USSG
PIPE LM 19506 LM 10500 1600 2048130 312096
END SECTIONS Each 28 each 27600 2100 772800 58800
807 Nestable Galvanized Corrugated Metal Pipe 48 inches in diameter 12 USSG
PIPE LM 11522 each 13500 2200 1555470 253484
Supply additional 48 inch diam Pipe 10480
END SECTIONS Each 10 each 76200 4300 762000 43000
808 Nestable Galvanized Corrugated Metal Pipe 60 inches in diameter 10 USSG
PIPE LM 48768 LM 20400 2700 9948672 1316736
Supply additional 60 inch diam Pipe 47510
809
810
811
Excavate inlet and outlet drains mitre ditches and roadway ditches
Sand-cement Pitching
Clay slope Protection
m3
m3
m2
477781 m3
276769 m3
NA
110
2300
030
3000
100
525559
636569
-0-
143334
830307
-0shy
Supplied but not installed
mi -blN mN -m~ m ml m min nmlW arm~ nn- a a a a1 al a
TABLE 4 (Continued) Sheet 3 of 4
Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount No Description
812 Supply Nestable Galvanized Corrugated
Metal Pipe 18 inches in diameter 14 USSG
PIPE
END SECTIONS
901 Construct Maintenance Facility Complex
902 Water Pump
903 Contractors Expenses and Profit on Prime Cost Item 902
1001 Road Signs
1002 Guide Posts
1003 Kilometre Posts
Dayworks
TOTAL-SCHEDULE OF QUANTITIES
a
0) CO I CO 2
TAMS Staff Hotel Accommodation
Air Conditioners TCN Houses
CO 3
CO 4
NA (Progress Payment Permanent Material)
Additional TCN Housing
SUB-TOTAL
CO 5 POL Escalation Cost
CO 6 POL Escalation Cost
CO 7 POL Escalation Cost
SUB-TOTAL
LESS OVERPAYMENT
TOTAL POL ESCALATION COST
CO 8 Interim Allowance (Wage)
CO 9 Wage Escalation Cost
SUB-TOTAL
LESS OVERPAYMENT
TOTAL WAGE ESCALATION COST
Measure
LM
Each
Lump Sum
PC Sum
25
Each
Each
Each
As directed
Each
Final Quantities
238 LM
0 each
98
284 each
900 each
182 each
100
100
100
NA
6
100
100
100
100
100
US $
3400
6700
8520
As Billed
650000
As Shown
As Shown
As Shown
As Shown
As Shown
RandPula
900000
1000
1450
1500
130100
US $
809200
-0-
13014800
-0-
-0-
2419680
-0-
-0-
5999421
882317486
376898
3900000
4276898
RandPula
-0shy
-0shy
7308700
255223
63806
284000
1305000
273000
-0shy
310970881
842138
5307
780600
1628045
575601
1815344
77277517
79668462
1661539
78006923
297802
16022556
16320358
125720
16194638
TABLE 4 (Continued)
Item No Description
Unit of Measure
Total Revised Final Quantities
Contract Unit Price US $ RandPula
Sheet 4 of 4
Final Revised Contract Amount US $ RandPula
CO 10
CO 11
CO 12
Road Reserve cleared way Chobe River By-pass (included under items 302 303 and 304)
Importation Additional Sheeps foot roller (included under item 101)
Minor realignment of roadway at Nata
TOTAL CONSTRUCTION COST
100
100
100
886594384 406800487
ishy
I I I I I I I I
APPENDIX A
I CONSTRUCTION EQUIPMENT
I I I I U I I I I I
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT
I Descqription
2 Chevrolet Impala Sedan
5 jeep-Wagoner
7 jeep-Wagoner
1 Chevrolet Vega
23 Chevrolet Pickup
19 Mack Tractor (T675-8W)
2 Chevrolet Flat Bed
5 Mack-Platform Stake (T426-3500)
1 Mack-2000 Gal Fuel (T426-3500)
4 Mack Dump Truck 10 cy
2 Chevrolet Dump Truck 5 cy
1 Mack-Birmingham Tandum Lowboy Trailer
2 Mack-Gindy 25 Ton Tandum Semi Trailer
8 Heil- P3S 303 cy Dump Trailer
I 7 Fruehauf-TEO-F3-R 10000 Gal Tanker
5 Fruehauf-TEO-F2-R 6500 Gal Tanker
5 Fruehauf-Tandum Axle Dolly
2 Barko 14000 Telescopic Crane
6 Cobey 1062 Wagon Trailer
1 Cedarapids 443 Commander Crusher
1 Peerless Portable Base Stabilisation Plant
2 Atlantic International Water Treatment Plant
6 Caterpillar 631-B TractorS631-B Scraper
7 Caterpillar D8-H Dozer
2 4
Caterpillar D9- Dozer Caterpillar D6-C Dozer
2 Caterpillar 12-F Grader
5 Caterpillar 14-E Grader
U A-i
1
I
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (Cont)
Quantity
4
1
4
11Raygo
1
S1 2
ICaterpillar-200KW 3
1
1
1
1
1
3
2 2
2
I
1
2
2
I
1 2
8
1
j 8
1 4
9
1
Description
Caterpillar 966 Loader
Trojan 4000 Loader
Raygo 400A Compactor Vibrator
410A Compactor Vibrator
Vibro Plus Vibrating Sheepsfoot Roller
Bros 10000 Compactor
Bros 6000 Compactor
Generator Caterpillar - 125KW Generator
Little Reddevil Generator
Kholer 3KW Generator
Kholer 2KW Generator
Detroit Diesel Generator (2D-32)
Kholer Generator (5CKM61)
Hobart GR-3 03 Welders w trolley
Worthington 365 Compressor Worthington 160 Compressor
Kellypower Tamper
John Deere 2700 Disc Harrow10 Cut
ohn Deere 1630 Disc Harrow 7 Cut
Worthington WS-55 Rock Drill
Alemite Portable Service Station
Graco Lube Ranger
Worthington Wagon Drill
Layne Bowler Deep Well Pump
Layne Bowler Pump only
4 Centrifugal Pump
2 Centrifugal Pump
Columbian Steel Water Tanks 20000 US Gal
A-2
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (contd)
Quanti
1I Description
Caterpillar Parallel Shank Ripper
2 Fleco Blade Rake
4 Chainsaw
3 Gardner-Denver Compressor
5 Aerotron Radio Transmitters $1203
7 Aerotron Radio Receivers $2 10
16 SSB Radio Transceivers $1340
8 Auxilliary Radio Transceivers $1340
2 Cevy 4 x 4 Pickup Truck 8 Chevy 2 x 4 Pickup Truck
1 L B Smith Cone Crusher
2 Ford 4 x 4 (1164-14C Tractor)
2 Bros Sheepsfoot Roller
1 Hyster Towed Vibratory Compactor
During 1975 and 1976 the Contractor added the following listed equipment
1 Caterpillar No 14 Motor Grader
1 Caterpillar No 966 Loader
1 Trojan No 4000 Loader
1 Cone Crushing Plant 3 ft Standard Fine Bowl with 4 Deck Screens
4 Conveyor Units
A-3
I 1 I I I U I I
APPENDIX B
I I SOILS AND MATERIALS
I I 1 I I I I I 1
APPENDIX B
SOILS AND MATERIALS
(a) General
The road pavement is composed basically of two layers the surface
course and base course overlaying a compacted subgrade or embankment
The sources and volumes of the surface course and base course materials
are indicated in the Materials Utilization Diagrams included as Figures B-i
through B-4
(b) Subgrade
The subgrade soil consists primarily of aeolian fine sand except
for approximately 36 kilometers of the road for which the subgrade is a pan material consisting of clay In the pan areas special 1 Om thick
embankments were constructed with plasticity and fineness control of material
The subgrade and embankment soils were compacted to a minimum of 90
of modified AASHTO compaction The measured mean relative compaction
obtained immediately after compaction of the subgrade was 935 of the modified AASHTO maximum density
(c) Base Course
The majority of the base course materials are derived from aeolian deposits ie fine sand with a trace to some silty clay The
remaining base bourse approximately 15 of the total was obtained from pits having a large component of gravel The 15cm thick base
course is bank run or blended material for which the amounts of fines
and plasticity were controlled The base course materials were obtained from 123 base borrow pits and compacted to a minimum 95 of modified AASHTO density The measured mean relative compaction
directly after construction was 96 of the modified AASHTO maximum
density
(d) Surface Course
The 15cm thick surface course is well graded sandy gravel with
some silty clay fraction The materials for the road segment from
Kilometer 0+000 to Kilometer 173+000 are derived from calcrete deposits
while the materials for the remaining portion are derived from weathered
3-1
bedrock The surface course has controlled gradation plasticity and
durability to obtain sufficient strength to reduce ravelling to a minimum
particularly during the dry season and to resist the wear of traffic
Surface course materials have been obtained by screening crushing
and blending materials from 9 borrow areas and were compacted to a
minimum of 98 of modified AASUTO maximum dry density The comshy
posite properties for each borrow pit are indicated in the Average
Gradation Ourvesincluded as Figures B-5 through B-13 Directly
after construction of the surface course the measured mean relative
compaction was 100 of the modified AASHTO maximum density
B-2
N A TA K A ZUN GU LA RO0A D 70 033 90 CC
00 00 0 0 0+I 03- 30L K
0 I I
M 3 100 0002L [2
_
MATERIALS UTILIZATION DIAGRAM Fiure -I
NATA - KAZUNGULA ROAD
+--- 121
y T
MATERIALS UTILIZATION DIAGRAM Fgure R-Z
NAT A - KAZ UN GULA ROAD
07 2 230K300 220 220 232 252
I 3 3 2
MATERIALS UTILIZATION DIAGRAM Figure 2-3
itLT-m
CHOBE RIVER BY-PASS ROAD 02__ Q___ 0 60 40 - 0 50 0 i
-F-CEL
-Tl J-II II
MATERIALS UTILIZATION DIAGRAM Figure B-4
3 SIEVE ANALYSIS SMI~ia VIII
IY UN In~ VI STAISRS SIEVE NUMBfh SUE9 - usuLguNuus O-- aoIiUl- I1
11I a to to 0 i oIIIa lf I
II
SN Cu ye B
II N
o
i B _ ___~ N II 1 l s - Curi e At-
I 2 I a 6 4 2 i5 4 3 2 a -
GRAIN I IZE MILTERS
SILT AND CLAY SOILS GRAVEL SAND
I NUMBE1RSAMPLE DEPTH LL KIE IPTIONIELEV P1 ECIT
A Composit 38 19 CrusherAverage Runof 192 samples
B Composit 33 17 Surface Course Blend asAverage of 236 samples placed
MDD 1960 kgm Los Angeles Abrasion = 42 Average Blend Added 15=
REPUBLIC OF BOTSWANA TI PPETTS-ASSETT-NcCAIThY-STRATTOU MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY BOTSWANA-ZAMBIA GRAIN SIZE DISTRIBUTION BY DmArTE Q76HIGHWAY j PIT 2A DOi FIGURE B-5
E ANLYSISSIEVE NALYSIS NI
OPEING - In jS PhIMS-SEVE iNRh3EN son - MILLIMETER
V11 6plusmn SSIEVE
6 i S 0-4 0 10 miUS) 3055 3 001mesa a
9 I I I - -
Crye B
S bull
1TCrii INN20 1 e A- NI deg I FIK 46591 2 a045 4 2 1115 5 2 6
GRIISZ IN MILLIMETERS
COACE iE NtIUM FI SILT AD CLAY SOILSGRAVEL SAND
5r IBSAMPLE DEPTH ELEV LLP1
A Composite 28 10 Crusher Run Average of 229 samples
B Composite 28 11 Surface Course Blend as Placed Average of 58 samples
2050 kgm3 Averaoe Blend Added shy
TIPPETTS-ASETT-NCCARTIY-STATTONREPUBLIC OF BOTSWANA NEW YORK NY
MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS
BRAIN SIZE DISTRIBUTION BY NCZ jAATE9 876BOTSWANA-ZAMBIA
HIGHWAY PIT 14 amp 14A OWN FIGURE B-6
i
S ANALYSIS 01 ANALYSIS
SIEVE - n -IIII- SIZ-MII- - IN i
It a s 1
Ue a -- e B
- 1 -I-[_I - I I I
6l51 10 8 $514 1 O is 05I I 21 8GANSZNILMTR OA RE Filo 9OA-1i 1DI UM F log S ILT AND CLAY SO ILS
GRAVEL nSAND
E--l I UNEASMPLEDEPlTH ELEV LL P1 KWKIPTION
A Composite 36 19 Crusher Run
Average of 116 Samples
B Composite 36 15 Surface Course Blend Average of 138 samples
H GHWA E SA 18 SILT ANDURCLA-SIL
3kgm Los Angeles Abrasion 28
Av agau Pnd AAd = 907 ITI UETT$-ABBTT-NcentcentARTNY-STRATTON
NEW YORK NY
REPUBLIC OF BOTSWANA
MINISTRY OF WORKS amp COM24UNICATIONSIT NINEERS1
I I MGIELI7 I 1 8AIIGIWAE
I
4
SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU
V 1 Oe 001l
- -r--I-I -- I
S E- -IN S
KI zz7llfl$zIIIti z I
low560
20
2
IGRAIN SIZE IN MILLIMETERS
COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS
GRAVEL SAND
SAMP DEPTH ELEV L P1 0NBERIIPTI
A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples
B Composit( 28 13 Surface Course Blend as Placed
Average of 85 samples
Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA
REPUBLIC OF BOTSWANA TI EfTTS-AIETT-NCARTY-STRATTOi ITTqTPI yen O WOVQ A n rn WTraTTn~lz ENGINEERS NEW YOlK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8
-D IUR IB
II SIEVE ANALYIIS 1411 I LYIlMll
[urn $11min - I I ITUSE IVV I - mampINimums1 -l0 n 001
a1 i 4 is s 0 aL w I 2 0665S a a 4 i 0i
-7sl
96---
I RI IE IN M IEER
CfliEI FIN g o au SIT SILFIN M40 5C o432 14593 ry B6
ver 7 samples
NUMBE NERPI
Ay I GRAIN SIZE IN MILLIMETR
5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND
A Q A- Aii dd d~A
IMUBEIRIIIIPIi
3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables
B Composit 26 13 Surface Course BlendU as Placed
Average of 79 samples
AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =
REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9
SIEVE ANALYSIS IMmv na awLYoia
SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I
I- 01 001
e---__
Ir1 -NIP_]
20
OA
$05 9 2
E
I
86543
I
7tN
2 1 65
_OAlEED t
5 2
FN
I
GRAIN SIZE IN MILLIMETERS
1 111I
NU BE GRAVEL
COARSE
I
MEDIUM
I SAND
FSILT AND CLAY SOILS
SAMPLE4 DEP EEY 1 SCBI1PTIORI
A
B
Composite
Composite
38
26
17
13
Crusher Run Basaltic Aggregate
Average of 176 samples
Surface Course Blend -s Placed Average of 58 samples
Average MDD = 2135 kgm Los Angeles Abrasion = 38
Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY
WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971
3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10
SIEVE ANIALYSIS lNVINI1111 ANALYSIS
I EV OPE IN - INI8 TOSIIEENN1-MLII
I
I - - i ii 0
I GRI SIZEto N OILS 1
I ANDLI IS
G VELIZE I
IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL
-APL ESN
DEPTH ELEY LL PI DESCRIPTIONNUSMBE
3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples
B Composite 26 13 Surface Course Blend as Placed Average of 58 samples
Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34
Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY
BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11
___ I
SIEVE ANALYSIS W11 ANKEm SIS
SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS
01 001
sodego
i i
U Ae
6 559 2 a65 3 2 1 6532 S
II GRAIN SIZE INMILLIMETERS
=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL
GRAVEL SN
I SAMPE DEPTH ELEV LL P)S DESCRIPTION
A omposite 28 10 Crusher Run
SAverage of 72 samples
B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples
Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20
REPUBLICUINISTRY 0OF OF
BOTSWANA WORKS amp COMMUNIGTIONS
TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12
I
SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM
-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U
I _
I1li
Ia _ Cu ve
N IC A11
IQI II
1 IG S IIIMETE
I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND
SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION
A Composite 34 15 Crusher Run Average of 74 samples
B Composite 29 12 Surface Course Blend as Placed
Average of 42 samples
MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15
REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA
ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N
NEW sy cKA
YORK NYT E-2 5 1 7 7
HIGHWAY PIT 32A Mwe FIGURE B-13
I I I I I I I I
APPENDIX C
I WATER WELL LOCATIONS
I I I I I I I I I
APPENDIX C WATER WELL LOCATIONS
WELL NO 3
Location Km 171 Lt of centerline 200 meters
Drill - 6 x 392
Ream - 8 x 92
Case - 6 x 84
Test - 24 Hours - 276
Pump 6000 G P H
Total depth - 392
Pumped at 150
24 Hr Drawdown - 3
Water Good
WELL NO 4
Location Km 175 - Lt of centerline 100 meters
Drill - 6 x 380
Ream - 8 x 82
Case - 7 x 82
Test - 276
Pump 1800 G P H
Total depth - 380
Pumped at 200
Drawdown 24 Hr - 100
Water Good
WELL NO 5 (Govt No 2436
Location Km 178 - Lt of centerline 115 meters
Test -276
Pump - 1400 G P H
Total depth - 160
Pumped at 140
24 Hr Drawdown - 60
Water Good C-1
WELL NO 6
Location Km 183 - Lt of centerline 60 meters
Drill - 6 x 436
Ream - 8 x 86
Case - 7 x 86
Test - 276
Pump - 500 G P H
Total depth - 436
Pumped at 250
24 Hr Drawdown - 150
Water Good
WELL NO 7 - (Govt No 2435)
Location Km 189 - Rt of centerline 100 meters
Clean amp Test
Pump - 6000 G P H
Pumped at 140
24 Hr Drawdown - 10
Water Good
WELL NO 14
Location Km 252 - Lt of centerline 100 meters
Drill - 6 x 250
Ream - 8 x 53
Case - 6 x 53
Test - 276
Pump - 6000 G P H
Total depth - 250
Pumped at 150
24 Hr Drawdown - 6
Water Good
C-2
WELL AT KM 256 MAINTENANCE FACILITY NO 3
Location Km 256 - Lt of centerline 200 meters
Depth - 100 feet
Water Rest Level - 42 feet
Depth Pump Set - 70 feet
24 Hr Test - 1800 G P H
WELL NO 15
Location Km 245 - Rt of centerline 40 meters
Drill - 6 x 260
Ream - 8 x 54
Case - 54
Test -276
Pump - 1500 G P H
Total depth - 260
Pumped at 200
24 Hr Drawdown - 140
Water Good
WELL NO 16 Location Km 236 -Rt of centerline 30 meters
Drill - 6 x 250
Ream - 8 x 22
Case - 6 x 22
Test - 276
Pump -6000 G P H
Total depth - 288
Pumped at 150
24 Hr Drawdown - 10
Water Good
C-3
WELL NO 17
Location Km 224 - Rt of centerline 30 meters
Drill - 10 x 89
Case - 8 x 85
Drill- 8x 43
Drill - 6 x 38
Case -6 x 132
Test - 276
Pump -2000 G P H
Total Depth - 170
Pumped at 100
24 Hr Drawdown - 11
Water Good
WELL NO 18
Location Km 217 - Lt of centerline 200 meters
Drill -i0 x 70
Case - 7 x 70
Drill - 7 x 52
Drill - 6 x 88
Case - 6 x 122
Test - 276
Pump 2400 G P H
Total depth - 210
Pumped at 200
24 Hr Drawdown - 140
Water Good
C-4
WELL NO 19
Location Km 213 - Lt of centerline 100 meters
Drill - 10 x 44
Case - 8 x 40
Drill - 8 x 76
Drill 6 x 130
Case - 6 x 120
Test - 276
Pump - 6000 G P H
Total depth - 210
Pumped at 60
24 Hr Drawdown - 10
Water Good
WELL NO 20
Location Km 143 - Rt of centerline 100 meters
Drill - 10 x 240
Case - 7 x 220
Drill -6 x 378
Case - 6 x 240
Case - 5 x 240
Test - 276
Pump -1500 G P H
Total depth - 618
Pumped at 460
24 Hr Drawdown - 105
Water slightly salty to taste but drinkable
C-5
WELL NO 23
Location Km 139 - Lt of centerline 100 meters
Drill - 12 x 290
Place amp Extract Case - 10 x 290
Drill - 8 x 30
Drill - 6 x 40
Case - 8 x 290
Case - 6 x 320
Test - 276
Pump - 1200 G P H
Total depth - 360
Pumped at 330
24 Hr Drawdown - 120
Water salty
WELL NO 24
Location Km 135 - Lt of centerline 500 meters
Drill - 12 x 270
Drill - 10 x 10
Case - 10 x 270
Drill -8 x 30
Case - 8 x 290
Case -6 x 310
Case - 5 x 320
Test -276
Pump -4000 +G P H
Total depth - 320
Pumped at 270
24 Hr Drawdown - 2
Water Salty
C-6
I
5
WELL KM 205 MAINTENANCE FACILITY NO 2
Location Km 105 - Lt of centerline 40 meters
Depth - 302 feet
~ Water Rest Level - 82 feet
Depth Pump Set - 150 feet
48 Hr Test - 3000 + G P H
WELL NO 26
Location Km 82 - Lt of centerline 100 meters
Drill - 12 x 145
5 -8 x145
Drill - 8 x 23
-Case
I Drill - 7 x 10
Case - 7 x 168
I Case - 6 x178
Test - 276
Pump - 1200 G P H
Total depth - 306
I Pumped at 140
24 Hr Drawdown - 35
I Water Good
C
I 0-7
WELL NO 27
Location Km 77 - Lt of centerline 100 meters
Drill - 12 x 174
Install amp Extract Case - 10 x 174
Case - 8 x 174
Drill - 9 x 68
Drill - 8 x 64
Case - 7 x 242
Case - 6 x 306
Test - 276
Pump - 4000 + G P H
Total Depth - 306
Pumpe at 240
24 Hr Drawdown - 0
Water Good
WELL NO 28- (Govt No 2465)
Location Km 63 - Rt of centerline 100 meters
Clean amp Extract Case - 300
Ream - 10 x 98
Ream - 8x 27
Ream - 6 x 12
Case - 8 x 98
Case - 6 x 125
Test - 276
Pump - 1000 + G P H
Total depth - 137
Pumped at 130
24 Hr Drawdown - 33
Water Good
C-8
WELL NO 30
Location Km 47 - Rt of centerline 400 meters
Drill - 12 x 132
Case - 10 x 89
Install amp Extract Case - 12 x 43
Drill - 10 x 117
Case - 7 x 242
Drill - 6 x 183
Install amp Extract Case - 6 x 408
Test - 276
Pump - 1000 G P H
Total depth - 408
Pumped at 160
24 Hr Drawdown - 77
Water Salty
WELL NO 31
- Lt of centerline 200 metersLocation Km 44
Drill - 12 x 110
Case - 10 x 100
Drill - 10 x 142
Case 8 x 142
Drill - 8 x 250
Case 7 x 392
Drill - 6 x 78
Test - 276
Pump - 3000 G P H
Total depth - 502
Pumped at 160
24 Hr Drawdown - 44
Water Salty
C-9
WELL NO 32
Location Km 42 - Lt of centerline 100 meters
Drill - 12 x 108
Case - 10 x 108
Drill - 10 x 212
Drill - 8 x 120
Case - 6 x 340
Case - 8 x 182
Test - 276
Pump - 3000 + G P H
Total depth - 448
Pumped at 160
24 Hr Drawdown - 20
Water Salty
WELL NO 34
Location Km 35 - Lt of centerline 200 meters
Drill - 12 x 230
Install amp Extract Case - 10 x 230
Drill - 8 x 30
Case -6 x 260
Drill - 6 x 160
Case -5 x 324
Case - 8 x 20
Test - 276
Pump -1000 + G P H
Total depth - 420
Pumped at 150
24 Hr Drawdown - 100
Water Salty
C-10
WELL NO 36
Location Km 7 N E along old track from Km 63
Drill - 12 x 180
Case - 10 x 180
Drill - 10 x 231
Case - 8 x 211
Drill- 8x 254
Case - 6 x 245
Test -276
Pump -4000 + G P H
Total depth - 265
Pumped at 180
24 Hr Drawdown - 0
Water Good
C-11
I 3 I 1 I I I I B j APPENDDC D
SYNOPSIS 0 KEY CORRESPONDENCE
3 DURING CONSTRUCTION
I pound I I I 1 I I
On September 1 1973 the Contractor confirmed the
estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts
On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project
On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be
obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated
On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine
On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation
On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension
On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension
On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval
On October 15 1973 the Engineer returned the construction progress schedule for correction
On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim
D-I
On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor
On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project
On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25
On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter
On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents
On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract
On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised
On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading
On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule
On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request
On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period
D-2
On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report
On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material
On August 19 1974 the Contractor submitted an updated construction progress schedule for approval
On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases
On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor
On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor
On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project
On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course
On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country
On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course
On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions
On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule
On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress
D-3
On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract
On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana
On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor
On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion
On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations
On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases
On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season
On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees
On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections
On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project
On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course
On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project
On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract
D-4
October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request
On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor
On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620
On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project
On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y
completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense
On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted
On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project
On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim
On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic
On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor
On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976
D-5
On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time
On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares
On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material
On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500
On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor
On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula
On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana
OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected
On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road
On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road
Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10
On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued
On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced
On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091
On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091
Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued
D-6
I I IUUU U U UU I U
E PROJECT PHOTOGRAPHS
I IIIU U I
I Crushing Plants Surface Course
Pit 2A
Pug Mill Blending Surface Course
Pit 25A
II Surface Course
Pit 25A
UURYPTOERTOSE Pug Mil Blending
Road Reserve Bush Clearing
Km 242
U
Embankment Construction Km 287
IN
Road Construction Water Supply
Km 189
ROADWAY UNDER CONSTRUTION
II
E-2
Stockpiling Material Base Course
Special Embankment Construction Km 232
Watering of Embankment Km 257
ROADWAY UNDER CONSTRUCTION E-3
Culvert Assembly
Twin Culvert with Sand-Cement Pitching
Multiple Culverts with Sand-Cement Pitching
CULVERT INSTALLATIONS E- 4
AT Km 25
AT Km 194
Emergency Landing Strip Kra 2605
FINISHED ROADWAY E- 5
AT Km 286
AT Chobe By-Pass Junction Km 297
I Chobe By-Pass Road Near Ngoma Bridge
E-6FINISHED ROADWAY
2 Principal Construction Accomplishments During 1975
- Clearing and Grubbing - 634 hectares completed between
Kilometer 169 and Kilometer 2+000 on the Nata-Kazungula
segment between Kilometer 0+000 and Kilometer 14+000
on the Chobe River By-Pass segment and from Kilometer 2+350
to Kilometer 5+275 on the Pandamatenga Access Road
- Earthworks - excavation and borrow quantities came to a total
of 379145m3 with the major share of this work performed
between Kilometer 196 and Kilometer 49+000 on the Nata-
Kazungula segment and on the Pandamatenga Access Road
- Pipe Culverts - 69 pipes were installed ranging in size from
18 to 60 in diameter for a total of 1308 lineal meters
between Kilometer 200 and Kilometer 65 on the Nata-Kazungula
segment and from Kilometer 0+000 to Kilometer 5+200 on the
Pandamatenga Access Road
Base Course - approximately 219000m was placed between
Kilometer 197 and Kilometer 57 on the Nata-Kazungula segment
and on the entire 52 kilometers of the Pandamatenga Access
Road
Surface Course - approximately 177 000m of surface material
placed between Kilometer 273 and Kilometer 130 on the Nata-
Kazungula segment
3 Principal Construction Accomplishments During 1976
- Clearing and Grubbing - completed 2188 hectares between
Kilometer 2+000 and Kildmeter 0+000 and between Kilometer
297+300 and Kilometer299+600 on the Nata-Kazungula segment
and between Kilometer 14+000 and Kilometer 65+000 on the
Chobe River By-Pass segment which completed this item of
work
- Earthworks - excavation and borrow quantities came to a total
of 235092m which completed this item of work
-8shy
Pipe Culverts - 36 pipes were installed ranging in size from
18 to 48 diameter for a total of 973 lineal meters The
major share of this work was performed on the Chobe River
By-Pass segment
Base Course- 206120m3 was placed on the Nata-Kazungula
road between Kilometer 57+600 and Kilometer 0+000 and between
Kilometer 297+300 and Kilometer 299+588 and on the Chobe River
By-Pass road between Kilometer 0+000 and Kilometer 65+048
Surface Course - 260878m placed between Kilometer 130+000
and Kilometer 0+000 on the Nata-Kazungula road and between
Kilometer 0+000 and Kilometer 65+048 on the Chobe River By-Pass
Road
4 Principal Construction Accomplishments During 1977
The Contractor continued to work on final clean-up and corrective
work in accordance with the punch list provided by the Engineer On January
19 1977 the Completion Certificate was issued with a list of outstanding
deficiencies attached These were rectified by the Contractor during the
early part of the six-rnnth maintenance period The Contractor in compliance
with the Engineers instructions installed 10 additional 18 diameter CMP
culverts on the Nata-Kazungula road between Kilometer 236 and Kilometer 238
Two additional pipes were installed at Kilometer 6+540 on the Chobe River
By-Pass Road Rock was placed on sand fill slopes and at culvert inlets and
outlets to guard against erosion on numerous sections of the Nata-Kazungula
Road and Chobe River By-Pass Road The Contractor maintained the project
until July 19 1977 when a Certificate of Maintenance was issued
C PROTECT SCHDULING AND DELAYS
On October 5 1973 as required by Clause 12 Part II-Conditions of
Particular Application of the Conditions of Contract - the Contractor submitted
his proposed construction schedule for the project The schedule was returned
to the Contractor on October 16 1973 for modifications It was resubmitted
and finally approved on March 19 1974
-9shy
In October 1974 the Contractor presented a revised construction schedule
It was not approved by the Engineer who informed the Contractor that the
actual rate of progress was far below that projected by the schedule and reshy
quested an explanation as to what steps were contemplated to bring progress
on the project up to schedule
On November 6 1974 the Contractor again presented a revised conshy
struction schedule reflecting a completion date beyond the contract period for
completing the Project The Contractor made reference to conditions which
had allegedly caused delays to progress on the Project and stated that claims
would be presented requesting time extension for completion of the Project
The revised schedule was not approved pending presentation by the Contractor
of all supporting details
By the end of December 1974 the Contractor had completed 29 percent
of the work then specified in the Contract as modified by ten change orders
This compared with 55 percent scheduled to be completed according to the
approved progress schedule
On February 27 1975 the Engineer notified the Contractor that progress
was continuing to fall further behind the approved construction schedule and
requested the Contractor to submit in writing his plans for bringing progress
up to schedule in compliance with pertinent provisions of the Contract On Tuly
24 1975 the Contractor again presented a revised construction schedule reflectshy
ing a completion date of August 31 1976 This schedule was accepted by
the Engineer in September 1975 with the provision that acceptance of the
schedule should in no way be construed as an approval for extension of time
for completion of the project
By the end of 1975 the Contractor had completed 63 percent of the work specified in the contract as compared with 73 percent projected in the revised
construction schedule
On March 11 1976 the Contractor presented the 6th revision of the
construction schedule reflecting a completion date of December 31 1976
This schedule is included herein as Figure 2 The schedule was accepted by
the Engineer on March 24 1976 with the provision that acceptance of this
schedule should in no manner be construed as an approval of extension of time
for completing the project
-0shy
LEGEND CONSTRUCTION PROGRESS CHART BOTSWANA-ZAMBIA HIGHWAY
WORK ELEMENT lt I
MOBILIZATION 7 T z ltgt 7gtlt74gtlaquo 7
GENERAL gt gt lt lt+ $ lt2740gt77
SURVEYS
AND SITE CLEARING
PREPARESUGRADE lt gt
7+47
I EARTHWORKS ~kgt1 E ~gt07 gt0gt0 ~laquolt gtgt~lt7laquogt 77gt
BASE COURSE
SURFACE COURSE ~lt 7ltgtlaquoD4
+4 7iA
gt
ltgt7 77 gtlt4lt
P
DRAINAGE I-shy___MAINTENANCEI I _ _ _ _
FACILITIES - -gt 7 7 7 7lt7 ltgttVViV77W7vV~7~
HIGHWAY HARDWARE lt
CHANGE ORDERS AND I
DAY WORKS lt
TOTAL
VII FINANCIAL SUMMARY
As indicated in Section I-B of this report the funds available (from
AID) for the construction of this project were in the amount of U S $16600000
The disbursements of monies for the construction and construction supervision
through May 31 1978 are summarized in Table 3 along with the original esshy
timated amounts for comparison
TABLE 3
Disbursements Through Original Estimated
May 31 1978 Amounts
US $ RandPula US $ RandPula
Construction Costs (Grove International See Table 5) 882317486 310970881 897784200 316082500
Change Orders (From Table 1) 4276898 - 95829606
Supervision of Construction (TAMS) 129796299 - 135468100 -
TOTALS 1016390683 406800487 1033252300 316082500
From original contracts and supplements through May 31 1978
Table 4 presents a summary of final construction costs including
those by Contract Pay Items disbursed to the Contractor (Grove International)
The above listed costs do not include back charges on the loan which
charges are not available to the Engineer
The Contractor has submitted a series of claims requesting extensions
of time and reimbursement for claimed additional costs These claims are
currently under review by the Engineer A supplemental report will be issued
by the Engineer after the Contractors claims have been resolved and will
include any additional costs and time extensions awarded to the Contractor
Assuming an average rate of exchange of 1000 Pula or 1000 Rand
equal to 1350 U S Dollars and neglecting bank charges the approximate
loan balance as of May 31 1978 was U S $940000
-12shy
An average conversion rate of exchange has been used to estimate
the loan balance since the actual rate varied and actual draw-down figures
are not available to the Engineer
At the time of Project commencement the currency of Botswana was
the Rand In August 1976 the Botswana Government changed over from the
Rand to the Pula as the official currency During the course of construction
local currency disbursements have been made to the Contractor in both Rand
and Pula
-13shy
--- =1m =- M Il-- M=M m -
Sheet 1 of 4TABLE 4 - SCHEDULE OF FINAL CONTRACT QUANTITIES
Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount RandPula
No Description Measure Final Quantities US $ RandPula US $
101 Mobilization Lump Sum 10000 57077200 58360600 -0shy
201 Engineers Staff Housing 2-Bedroom House Each 1 3333 1300000 272100 1300000 272100
202 Engineers Staff Housing 3-Bedroom House Each 3 10000 1400000 339300 4200000 1017900
203 Engineers Staff Housing Technicians House Each 4 10000 650000 130100 2600000 520400
204 Engineers Staff Housing Jr Staff Housing Each 16 10000 112500 19600 1800000 313600
205 Moving amp Re-erection of Engineers Staff Housing Each move NOT APPLICABLE
206 Engineers Main Office Lump Sum 10000 1800000 306300
207 Engineers Main Laboratory Lump Sum 10000 2600000 407700
208 Moving amp Re-erection of Engineers Main Office Each Move NOT A P L I CA B L E and Main Laboratory
209 Engineers Forward OfficeLaboratory Each 2 10000 766300 1532600 -0shy
210 Additional Surveying Office Laboratory and Prime Cost 69809 1500000 1047146 -0-Communication Equipment
211 Contractors Expenses and Profit on Percent 69809 25 261787 -0-Prime Cost Item 210
212 Provide and Maintain Vehicles for ihe Engineers Staff Vmonth 304 Vmonth 24000 17100 7296000 5198400
301 Basic Survey and Setting Out km 370590 km 48500 13400 17973600 4965905
302 Clear Heavy Bush Hectare 514075 ha 23200 7500 11926540 3855563
303 Cleat Light Bush Hectare 70053 ha 15500 5000 10858215 3502650
304 Clear Grassy Hectare 1775 ha 12400 4000 2201000 710000
401 Prepare Sand Subgrade for Embankment m2 3335443 m 2 011 006 36689873 20012658
402 Prepare Clay Subgrade for Embankment m2 408450 m 2 023 011 9394350 4492950
501 Construct Standard Embankment i3 865895 m3 117 047 101309715 40697065
3502 Construct Special Embankment m3 254779 m 196 074 49936684 18853646
030 384035 129450503 Excavate Unsuitable Material m3 4315 m3 089
601 Base Course m3 538854 m3 310 120 167044740 64662480
602 Overhaul of Base Course Material m3km 46462 m3kr 028 010 1300936 464620
701 Remove Overburden from Surface Course Borrow Pits m3 260056 m3 060 016 15603360 4160896
702 Surface Course m3 457260 m3 545 210 249206700 96024600
703 Haul of Surface Course Material m3kmn 6572330 m3kr 0102 0034 67037766 22345922
TABLE 4 (Continued) Sheet 2 of 4
Item No Description
Unit of Measure
Total Revised Final Quantities
Contract Unit Price US $ RandPula
Final Revised Contract Amount US $ RandPula
801
802
803
Excavation and Backfill for Cuiverts up to 48 inches in diameter
Excavations for foundations of Culverts 48 inches and over
Backfilling culverts 48 inches and over
m3
m3
m3
558512 m3
94946 m3
322010 m3
480
270
490
330
140
360
2680858
256352
1577849
1843090
132923
1159236
804 Nestable Galvanized Corrugated Metal Pipe 18 inches in diameter 14 USSG
PIPE LM 249963 LM 4380 820 10948379 2049697
END SECTIONS Each 388 each 6660 225 2584080 87300
805 Nestable Galvanized Corrugated Metal Pipe 24 inches in diameter 14 USSG
PIPE LM 28104 LM 5560 1100 1562582 309144
Supply additional 24 inch diam Pipe 114035
END SECTIONS Each 34 each 10200 800 345800 27200
Supply additional End Sections 30600
806 Nestable Galvanized Corrugated Metal Pipe 36 inches in diameter 12 USSG
PIPE LM 19506 LM 10500 1600 2048130 312096
END SECTIONS Each 28 each 27600 2100 772800 58800
807 Nestable Galvanized Corrugated Metal Pipe 48 inches in diameter 12 USSG
PIPE LM 11522 each 13500 2200 1555470 253484
Supply additional 48 inch diam Pipe 10480
END SECTIONS Each 10 each 76200 4300 762000 43000
808 Nestable Galvanized Corrugated Metal Pipe 60 inches in diameter 10 USSG
PIPE LM 48768 LM 20400 2700 9948672 1316736
Supply additional 60 inch diam Pipe 47510
809
810
811
Excavate inlet and outlet drains mitre ditches and roadway ditches
Sand-cement Pitching
Clay slope Protection
m3
m3
m2
477781 m3
276769 m3
NA
110
2300
030
3000
100
525559
636569
-0-
143334
830307
-0shy
Supplied but not installed
mi -blN mN -m~ m ml m min nmlW arm~ nn- a a a a1 al a
TABLE 4 (Continued) Sheet 3 of 4
Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount No Description
812 Supply Nestable Galvanized Corrugated
Metal Pipe 18 inches in diameter 14 USSG
PIPE
END SECTIONS
901 Construct Maintenance Facility Complex
902 Water Pump
903 Contractors Expenses and Profit on Prime Cost Item 902
1001 Road Signs
1002 Guide Posts
1003 Kilometre Posts
Dayworks
TOTAL-SCHEDULE OF QUANTITIES
a
0) CO I CO 2
TAMS Staff Hotel Accommodation
Air Conditioners TCN Houses
CO 3
CO 4
NA (Progress Payment Permanent Material)
Additional TCN Housing
SUB-TOTAL
CO 5 POL Escalation Cost
CO 6 POL Escalation Cost
CO 7 POL Escalation Cost
SUB-TOTAL
LESS OVERPAYMENT
TOTAL POL ESCALATION COST
CO 8 Interim Allowance (Wage)
CO 9 Wage Escalation Cost
SUB-TOTAL
LESS OVERPAYMENT
TOTAL WAGE ESCALATION COST
Measure
LM
Each
Lump Sum
PC Sum
25
Each
Each
Each
As directed
Each
Final Quantities
238 LM
0 each
98
284 each
900 each
182 each
100
100
100
NA
6
100
100
100
100
100
US $
3400
6700
8520
As Billed
650000
As Shown
As Shown
As Shown
As Shown
As Shown
RandPula
900000
1000
1450
1500
130100
US $
809200
-0-
13014800
-0-
-0-
2419680
-0-
-0-
5999421
882317486
376898
3900000
4276898
RandPula
-0shy
-0shy
7308700
255223
63806
284000
1305000
273000
-0shy
310970881
842138
5307
780600
1628045
575601
1815344
77277517
79668462
1661539
78006923
297802
16022556
16320358
125720
16194638
TABLE 4 (Continued)
Item No Description
Unit of Measure
Total Revised Final Quantities
Contract Unit Price US $ RandPula
Sheet 4 of 4
Final Revised Contract Amount US $ RandPula
CO 10
CO 11
CO 12
Road Reserve cleared way Chobe River By-pass (included under items 302 303 and 304)
Importation Additional Sheeps foot roller (included under item 101)
Minor realignment of roadway at Nata
TOTAL CONSTRUCTION COST
100
100
100
886594384 406800487
ishy
I I I I I I I I
APPENDIX A
I CONSTRUCTION EQUIPMENT
I I I I U I I I I I
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT
I Descqription
2 Chevrolet Impala Sedan
5 jeep-Wagoner
7 jeep-Wagoner
1 Chevrolet Vega
23 Chevrolet Pickup
19 Mack Tractor (T675-8W)
2 Chevrolet Flat Bed
5 Mack-Platform Stake (T426-3500)
1 Mack-2000 Gal Fuel (T426-3500)
4 Mack Dump Truck 10 cy
2 Chevrolet Dump Truck 5 cy
1 Mack-Birmingham Tandum Lowboy Trailer
2 Mack-Gindy 25 Ton Tandum Semi Trailer
8 Heil- P3S 303 cy Dump Trailer
I 7 Fruehauf-TEO-F3-R 10000 Gal Tanker
5 Fruehauf-TEO-F2-R 6500 Gal Tanker
5 Fruehauf-Tandum Axle Dolly
2 Barko 14000 Telescopic Crane
6 Cobey 1062 Wagon Trailer
1 Cedarapids 443 Commander Crusher
1 Peerless Portable Base Stabilisation Plant
2 Atlantic International Water Treatment Plant
6 Caterpillar 631-B TractorS631-B Scraper
7 Caterpillar D8-H Dozer
2 4
Caterpillar D9- Dozer Caterpillar D6-C Dozer
2 Caterpillar 12-F Grader
5 Caterpillar 14-E Grader
U A-i
1
I
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (Cont)
Quantity
4
1
4
11Raygo
1
S1 2
ICaterpillar-200KW 3
1
1
1
1
1
3
2 2
2
I
1
2
2
I
1 2
8
1
j 8
1 4
9
1
Description
Caterpillar 966 Loader
Trojan 4000 Loader
Raygo 400A Compactor Vibrator
410A Compactor Vibrator
Vibro Plus Vibrating Sheepsfoot Roller
Bros 10000 Compactor
Bros 6000 Compactor
Generator Caterpillar - 125KW Generator
Little Reddevil Generator
Kholer 3KW Generator
Kholer 2KW Generator
Detroit Diesel Generator (2D-32)
Kholer Generator (5CKM61)
Hobart GR-3 03 Welders w trolley
Worthington 365 Compressor Worthington 160 Compressor
Kellypower Tamper
John Deere 2700 Disc Harrow10 Cut
ohn Deere 1630 Disc Harrow 7 Cut
Worthington WS-55 Rock Drill
Alemite Portable Service Station
Graco Lube Ranger
Worthington Wagon Drill
Layne Bowler Deep Well Pump
Layne Bowler Pump only
4 Centrifugal Pump
2 Centrifugal Pump
Columbian Steel Water Tanks 20000 US Gal
A-2
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (contd)
Quanti
1I Description
Caterpillar Parallel Shank Ripper
2 Fleco Blade Rake
4 Chainsaw
3 Gardner-Denver Compressor
5 Aerotron Radio Transmitters $1203
7 Aerotron Radio Receivers $2 10
16 SSB Radio Transceivers $1340
8 Auxilliary Radio Transceivers $1340
2 Cevy 4 x 4 Pickup Truck 8 Chevy 2 x 4 Pickup Truck
1 L B Smith Cone Crusher
2 Ford 4 x 4 (1164-14C Tractor)
2 Bros Sheepsfoot Roller
1 Hyster Towed Vibratory Compactor
During 1975 and 1976 the Contractor added the following listed equipment
1 Caterpillar No 14 Motor Grader
1 Caterpillar No 966 Loader
1 Trojan No 4000 Loader
1 Cone Crushing Plant 3 ft Standard Fine Bowl with 4 Deck Screens
4 Conveyor Units
A-3
I 1 I I I U I I
APPENDIX B
I I SOILS AND MATERIALS
I I 1 I I I I I 1
APPENDIX B
SOILS AND MATERIALS
(a) General
The road pavement is composed basically of two layers the surface
course and base course overlaying a compacted subgrade or embankment
The sources and volumes of the surface course and base course materials
are indicated in the Materials Utilization Diagrams included as Figures B-i
through B-4
(b) Subgrade
The subgrade soil consists primarily of aeolian fine sand except
for approximately 36 kilometers of the road for which the subgrade is a pan material consisting of clay In the pan areas special 1 Om thick
embankments were constructed with plasticity and fineness control of material
The subgrade and embankment soils were compacted to a minimum of 90
of modified AASHTO compaction The measured mean relative compaction
obtained immediately after compaction of the subgrade was 935 of the modified AASHTO maximum density
(c) Base Course
The majority of the base course materials are derived from aeolian deposits ie fine sand with a trace to some silty clay The
remaining base bourse approximately 15 of the total was obtained from pits having a large component of gravel The 15cm thick base
course is bank run or blended material for which the amounts of fines
and plasticity were controlled The base course materials were obtained from 123 base borrow pits and compacted to a minimum 95 of modified AASHTO density The measured mean relative compaction
directly after construction was 96 of the modified AASHTO maximum
density
(d) Surface Course
The 15cm thick surface course is well graded sandy gravel with
some silty clay fraction The materials for the road segment from
Kilometer 0+000 to Kilometer 173+000 are derived from calcrete deposits
while the materials for the remaining portion are derived from weathered
3-1
bedrock The surface course has controlled gradation plasticity and
durability to obtain sufficient strength to reduce ravelling to a minimum
particularly during the dry season and to resist the wear of traffic
Surface course materials have been obtained by screening crushing
and blending materials from 9 borrow areas and were compacted to a
minimum of 98 of modified AASUTO maximum dry density The comshy
posite properties for each borrow pit are indicated in the Average
Gradation Ourvesincluded as Figures B-5 through B-13 Directly
after construction of the surface course the measured mean relative
compaction was 100 of the modified AASHTO maximum density
B-2
N A TA K A ZUN GU LA RO0A D 70 033 90 CC
00 00 0 0 0+I 03- 30L K
0 I I
M 3 100 0002L [2
_
MATERIALS UTILIZATION DIAGRAM Fiure -I
NATA - KAZUNGULA ROAD
+--- 121
y T
MATERIALS UTILIZATION DIAGRAM Fgure R-Z
NAT A - KAZ UN GULA ROAD
07 2 230K300 220 220 232 252
I 3 3 2
MATERIALS UTILIZATION DIAGRAM Figure 2-3
itLT-m
CHOBE RIVER BY-PASS ROAD 02__ Q___ 0 60 40 - 0 50 0 i
-F-CEL
-Tl J-II II
MATERIALS UTILIZATION DIAGRAM Figure B-4
3 SIEVE ANALYSIS SMI~ia VIII
IY UN In~ VI STAISRS SIEVE NUMBfh SUE9 - usuLguNuus O-- aoIiUl- I1
11I a to to 0 i oIIIa lf I
II
SN Cu ye B
II N
o
i B _ ___~ N II 1 l s - Curi e At-
I 2 I a 6 4 2 i5 4 3 2 a -
GRAIN I IZE MILTERS
SILT AND CLAY SOILS GRAVEL SAND
I NUMBE1RSAMPLE DEPTH LL KIE IPTIONIELEV P1 ECIT
A Composit 38 19 CrusherAverage Runof 192 samples
B Composit 33 17 Surface Course Blend asAverage of 236 samples placed
MDD 1960 kgm Los Angeles Abrasion = 42 Average Blend Added 15=
REPUBLIC OF BOTSWANA TI PPETTS-ASSETT-NcCAIThY-STRATTOU MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY BOTSWANA-ZAMBIA GRAIN SIZE DISTRIBUTION BY DmArTE Q76HIGHWAY j PIT 2A DOi FIGURE B-5
E ANLYSISSIEVE NALYSIS NI
OPEING - In jS PhIMS-SEVE iNRh3EN son - MILLIMETER
V11 6plusmn SSIEVE
6 i S 0-4 0 10 miUS) 3055 3 001mesa a
9 I I I - -
Crye B
S bull
1TCrii INN20 1 e A- NI deg I FIK 46591 2 a045 4 2 1115 5 2 6
GRIISZ IN MILLIMETERS
COACE iE NtIUM FI SILT AD CLAY SOILSGRAVEL SAND
5r IBSAMPLE DEPTH ELEV LLP1
A Composite 28 10 Crusher Run Average of 229 samples
B Composite 28 11 Surface Course Blend as Placed Average of 58 samples
2050 kgm3 Averaoe Blend Added shy
TIPPETTS-ASETT-NCCARTIY-STATTONREPUBLIC OF BOTSWANA NEW YORK NY
MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS
BRAIN SIZE DISTRIBUTION BY NCZ jAATE9 876BOTSWANA-ZAMBIA
HIGHWAY PIT 14 amp 14A OWN FIGURE B-6
i
S ANALYSIS 01 ANALYSIS
SIEVE - n -IIII- SIZ-MII- - IN i
It a s 1
Ue a -- e B
- 1 -I-[_I - I I I
6l51 10 8 $514 1 O is 05I I 21 8GANSZNILMTR OA RE Filo 9OA-1i 1DI UM F log S ILT AND CLAY SO ILS
GRAVEL nSAND
E--l I UNEASMPLEDEPlTH ELEV LL P1 KWKIPTION
A Composite 36 19 Crusher Run
Average of 116 Samples
B Composite 36 15 Surface Course Blend Average of 138 samples
H GHWA E SA 18 SILT ANDURCLA-SIL
3kgm Los Angeles Abrasion 28
Av agau Pnd AAd = 907 ITI UETT$-ABBTT-NcentcentARTNY-STRATTON
NEW YORK NY
REPUBLIC OF BOTSWANA
MINISTRY OF WORKS amp COM24UNICATIONSIT NINEERS1
I I MGIELI7 I 1 8AIIGIWAE
I
4
SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU
V 1 Oe 001l
- -r--I-I -- I
S E- -IN S
KI zz7llfl$zIIIti z I
low560
20
2
IGRAIN SIZE IN MILLIMETERS
COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS
GRAVEL SAND
SAMP DEPTH ELEV L P1 0NBERIIPTI
A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples
B Composit( 28 13 Surface Course Blend as Placed
Average of 85 samples
Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA
REPUBLIC OF BOTSWANA TI EfTTS-AIETT-NCARTY-STRATTOi ITTqTPI yen O WOVQ A n rn WTraTTn~lz ENGINEERS NEW YOlK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8
-D IUR IB
II SIEVE ANALYIIS 1411 I LYIlMll
[urn $11min - I I ITUSE IVV I - mampINimums1 -l0 n 001
a1 i 4 is s 0 aL w I 2 0665S a a 4 i 0i
-7sl
96---
I RI IE IN M IEER
CfliEI FIN g o au SIT SILFIN M40 5C o432 14593 ry B6
ver 7 samples
NUMBE NERPI
Ay I GRAIN SIZE IN MILLIMETR
5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND
A Q A- Aii dd d~A
IMUBEIRIIIIPIi
3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables
B Composit 26 13 Surface Course BlendU as Placed
Average of 79 samples
AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =
REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9
SIEVE ANALYSIS IMmv na awLYoia
SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I
I- 01 001
e---__
Ir1 -NIP_]
20
OA
$05 9 2
E
I
86543
I
7tN
2 1 65
_OAlEED t
5 2
FN
I
GRAIN SIZE IN MILLIMETERS
1 111I
NU BE GRAVEL
COARSE
I
MEDIUM
I SAND
FSILT AND CLAY SOILS
SAMPLE4 DEP EEY 1 SCBI1PTIORI
A
B
Composite
Composite
38
26
17
13
Crusher Run Basaltic Aggregate
Average of 176 samples
Surface Course Blend -s Placed Average of 58 samples
Average MDD = 2135 kgm Los Angeles Abrasion = 38
Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY
WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971
3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10
SIEVE ANIALYSIS lNVINI1111 ANALYSIS
I EV OPE IN - INI8 TOSIIEENN1-MLII
I
I - - i ii 0
I GRI SIZEto N OILS 1
I ANDLI IS
G VELIZE I
IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL
-APL ESN
DEPTH ELEY LL PI DESCRIPTIONNUSMBE
3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples
B Composite 26 13 Surface Course Blend as Placed Average of 58 samples
Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34
Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY
BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11
___ I
SIEVE ANALYSIS W11 ANKEm SIS
SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS
01 001
sodego
i i
U Ae
6 559 2 a65 3 2 1 6532 S
II GRAIN SIZE INMILLIMETERS
=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL
GRAVEL SN
I SAMPE DEPTH ELEV LL P)S DESCRIPTION
A omposite 28 10 Crusher Run
SAverage of 72 samples
B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples
Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20
REPUBLICUINISTRY 0OF OF
BOTSWANA WORKS amp COMMUNIGTIONS
TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12
I
SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM
-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U
I _
I1li
Ia _ Cu ve
N IC A11
IQI II
1 IG S IIIMETE
I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND
SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION
A Composite 34 15 Crusher Run Average of 74 samples
B Composite 29 12 Surface Course Blend as Placed
Average of 42 samples
MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15
REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA
ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N
NEW sy cKA
YORK NYT E-2 5 1 7 7
HIGHWAY PIT 32A Mwe FIGURE B-13
I I I I I I I I
APPENDIX C
I WATER WELL LOCATIONS
I I I I I I I I I
APPENDIX C WATER WELL LOCATIONS
WELL NO 3
Location Km 171 Lt of centerline 200 meters
Drill - 6 x 392
Ream - 8 x 92
Case - 6 x 84
Test - 24 Hours - 276
Pump 6000 G P H
Total depth - 392
Pumped at 150
24 Hr Drawdown - 3
Water Good
WELL NO 4
Location Km 175 - Lt of centerline 100 meters
Drill - 6 x 380
Ream - 8 x 82
Case - 7 x 82
Test - 276
Pump 1800 G P H
Total depth - 380
Pumped at 200
Drawdown 24 Hr - 100
Water Good
WELL NO 5 (Govt No 2436
Location Km 178 - Lt of centerline 115 meters
Test -276
Pump - 1400 G P H
Total depth - 160
Pumped at 140
24 Hr Drawdown - 60
Water Good C-1
WELL NO 6
Location Km 183 - Lt of centerline 60 meters
Drill - 6 x 436
Ream - 8 x 86
Case - 7 x 86
Test - 276
Pump - 500 G P H
Total depth - 436
Pumped at 250
24 Hr Drawdown - 150
Water Good
WELL NO 7 - (Govt No 2435)
Location Km 189 - Rt of centerline 100 meters
Clean amp Test
Pump - 6000 G P H
Pumped at 140
24 Hr Drawdown - 10
Water Good
WELL NO 14
Location Km 252 - Lt of centerline 100 meters
Drill - 6 x 250
Ream - 8 x 53
Case - 6 x 53
Test - 276
Pump - 6000 G P H
Total depth - 250
Pumped at 150
24 Hr Drawdown - 6
Water Good
C-2
WELL AT KM 256 MAINTENANCE FACILITY NO 3
Location Km 256 - Lt of centerline 200 meters
Depth - 100 feet
Water Rest Level - 42 feet
Depth Pump Set - 70 feet
24 Hr Test - 1800 G P H
WELL NO 15
Location Km 245 - Rt of centerline 40 meters
Drill - 6 x 260
Ream - 8 x 54
Case - 54
Test -276
Pump - 1500 G P H
Total depth - 260
Pumped at 200
24 Hr Drawdown - 140
Water Good
WELL NO 16 Location Km 236 -Rt of centerline 30 meters
Drill - 6 x 250
Ream - 8 x 22
Case - 6 x 22
Test - 276
Pump -6000 G P H
Total depth - 288
Pumped at 150
24 Hr Drawdown - 10
Water Good
C-3
WELL NO 17
Location Km 224 - Rt of centerline 30 meters
Drill - 10 x 89
Case - 8 x 85
Drill- 8x 43
Drill - 6 x 38
Case -6 x 132
Test - 276
Pump -2000 G P H
Total Depth - 170
Pumped at 100
24 Hr Drawdown - 11
Water Good
WELL NO 18
Location Km 217 - Lt of centerline 200 meters
Drill -i0 x 70
Case - 7 x 70
Drill - 7 x 52
Drill - 6 x 88
Case - 6 x 122
Test - 276
Pump 2400 G P H
Total depth - 210
Pumped at 200
24 Hr Drawdown - 140
Water Good
C-4
WELL NO 19
Location Km 213 - Lt of centerline 100 meters
Drill - 10 x 44
Case - 8 x 40
Drill - 8 x 76
Drill 6 x 130
Case - 6 x 120
Test - 276
Pump - 6000 G P H
Total depth - 210
Pumped at 60
24 Hr Drawdown - 10
Water Good
WELL NO 20
Location Km 143 - Rt of centerline 100 meters
Drill - 10 x 240
Case - 7 x 220
Drill -6 x 378
Case - 6 x 240
Case - 5 x 240
Test - 276
Pump -1500 G P H
Total depth - 618
Pumped at 460
24 Hr Drawdown - 105
Water slightly salty to taste but drinkable
C-5
WELL NO 23
Location Km 139 - Lt of centerline 100 meters
Drill - 12 x 290
Place amp Extract Case - 10 x 290
Drill - 8 x 30
Drill - 6 x 40
Case - 8 x 290
Case - 6 x 320
Test - 276
Pump - 1200 G P H
Total depth - 360
Pumped at 330
24 Hr Drawdown - 120
Water salty
WELL NO 24
Location Km 135 - Lt of centerline 500 meters
Drill - 12 x 270
Drill - 10 x 10
Case - 10 x 270
Drill -8 x 30
Case - 8 x 290
Case -6 x 310
Case - 5 x 320
Test -276
Pump -4000 +G P H
Total depth - 320
Pumped at 270
24 Hr Drawdown - 2
Water Salty
C-6
I
5
WELL KM 205 MAINTENANCE FACILITY NO 2
Location Km 105 - Lt of centerline 40 meters
Depth - 302 feet
~ Water Rest Level - 82 feet
Depth Pump Set - 150 feet
48 Hr Test - 3000 + G P H
WELL NO 26
Location Km 82 - Lt of centerline 100 meters
Drill - 12 x 145
5 -8 x145
Drill - 8 x 23
-Case
I Drill - 7 x 10
Case - 7 x 168
I Case - 6 x178
Test - 276
Pump - 1200 G P H
Total depth - 306
I Pumped at 140
24 Hr Drawdown - 35
I Water Good
C
I 0-7
WELL NO 27
Location Km 77 - Lt of centerline 100 meters
Drill - 12 x 174
Install amp Extract Case - 10 x 174
Case - 8 x 174
Drill - 9 x 68
Drill - 8 x 64
Case - 7 x 242
Case - 6 x 306
Test - 276
Pump - 4000 + G P H
Total Depth - 306
Pumpe at 240
24 Hr Drawdown - 0
Water Good
WELL NO 28- (Govt No 2465)
Location Km 63 - Rt of centerline 100 meters
Clean amp Extract Case - 300
Ream - 10 x 98
Ream - 8x 27
Ream - 6 x 12
Case - 8 x 98
Case - 6 x 125
Test - 276
Pump - 1000 + G P H
Total depth - 137
Pumped at 130
24 Hr Drawdown - 33
Water Good
C-8
WELL NO 30
Location Km 47 - Rt of centerline 400 meters
Drill - 12 x 132
Case - 10 x 89
Install amp Extract Case - 12 x 43
Drill - 10 x 117
Case - 7 x 242
Drill - 6 x 183
Install amp Extract Case - 6 x 408
Test - 276
Pump - 1000 G P H
Total depth - 408
Pumped at 160
24 Hr Drawdown - 77
Water Salty
WELL NO 31
- Lt of centerline 200 metersLocation Km 44
Drill - 12 x 110
Case - 10 x 100
Drill - 10 x 142
Case 8 x 142
Drill - 8 x 250
Case 7 x 392
Drill - 6 x 78
Test - 276
Pump - 3000 G P H
Total depth - 502
Pumped at 160
24 Hr Drawdown - 44
Water Salty
C-9
WELL NO 32
Location Km 42 - Lt of centerline 100 meters
Drill - 12 x 108
Case - 10 x 108
Drill - 10 x 212
Drill - 8 x 120
Case - 6 x 340
Case - 8 x 182
Test - 276
Pump - 3000 + G P H
Total depth - 448
Pumped at 160
24 Hr Drawdown - 20
Water Salty
WELL NO 34
Location Km 35 - Lt of centerline 200 meters
Drill - 12 x 230
Install amp Extract Case - 10 x 230
Drill - 8 x 30
Case -6 x 260
Drill - 6 x 160
Case -5 x 324
Case - 8 x 20
Test - 276
Pump -1000 + G P H
Total depth - 420
Pumped at 150
24 Hr Drawdown - 100
Water Salty
C-10
WELL NO 36
Location Km 7 N E along old track from Km 63
Drill - 12 x 180
Case - 10 x 180
Drill - 10 x 231
Case - 8 x 211
Drill- 8x 254
Case - 6 x 245
Test -276
Pump -4000 + G P H
Total depth - 265
Pumped at 180
24 Hr Drawdown - 0
Water Good
C-11
I 3 I 1 I I I I B j APPENDDC D
SYNOPSIS 0 KEY CORRESPONDENCE
3 DURING CONSTRUCTION
I pound I I I 1 I I
On September 1 1973 the Contractor confirmed the
estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts
On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project
On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be
obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated
On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine
On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation
On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension
On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension
On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval
On October 15 1973 the Engineer returned the construction progress schedule for correction
On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim
D-I
On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor
On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project
On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25
On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter
On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents
On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract
On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised
On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading
On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule
On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request
On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period
D-2
On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report
On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material
On August 19 1974 the Contractor submitted an updated construction progress schedule for approval
On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases
On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor
On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor
On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project
On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course
On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country
On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course
On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions
On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule
On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress
D-3
On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract
On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana
On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor
On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion
On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations
On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases
On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season
On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees
On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections
On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project
On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course
On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project
On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract
D-4
October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request
On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor
On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620
On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project
On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y
completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense
On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted
On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project
On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim
On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic
On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor
On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976
D-5
On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time
On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares
On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material
On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500
On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor
On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula
On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana
OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected
On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road
On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road
Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10
On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued
On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced
On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091
On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091
Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued
D-6
I I IUUU U U UU I U
E PROJECT PHOTOGRAPHS
I IIIU U I
I Crushing Plants Surface Course
Pit 2A
Pug Mill Blending Surface Course
Pit 25A
II Surface Course
Pit 25A
UURYPTOERTOSE Pug Mil Blending
Road Reserve Bush Clearing
Km 242
U
Embankment Construction Km 287
IN
Road Construction Water Supply
Km 189
ROADWAY UNDER CONSTRUTION
II
E-2
Stockpiling Material Base Course
Special Embankment Construction Km 232
Watering of Embankment Km 257
ROADWAY UNDER CONSTRUCTION E-3
Culvert Assembly
Twin Culvert with Sand-Cement Pitching
Multiple Culverts with Sand-Cement Pitching
CULVERT INSTALLATIONS E- 4
AT Km 25
AT Km 194
Emergency Landing Strip Kra 2605
FINISHED ROADWAY E- 5
AT Km 286
AT Chobe By-Pass Junction Km 297
I Chobe By-Pass Road Near Ngoma Bridge
E-6FINISHED ROADWAY
Pipe Culverts - 36 pipes were installed ranging in size from
18 to 48 diameter for a total of 973 lineal meters The
major share of this work was performed on the Chobe River
By-Pass segment
Base Course- 206120m3 was placed on the Nata-Kazungula
road between Kilometer 57+600 and Kilometer 0+000 and between
Kilometer 297+300 and Kilometer 299+588 and on the Chobe River
By-Pass road between Kilometer 0+000 and Kilometer 65+048
Surface Course - 260878m placed between Kilometer 130+000
and Kilometer 0+000 on the Nata-Kazungula road and between
Kilometer 0+000 and Kilometer 65+048 on the Chobe River By-Pass
Road
4 Principal Construction Accomplishments During 1977
The Contractor continued to work on final clean-up and corrective
work in accordance with the punch list provided by the Engineer On January
19 1977 the Completion Certificate was issued with a list of outstanding
deficiencies attached These were rectified by the Contractor during the
early part of the six-rnnth maintenance period The Contractor in compliance
with the Engineers instructions installed 10 additional 18 diameter CMP
culverts on the Nata-Kazungula road between Kilometer 236 and Kilometer 238
Two additional pipes were installed at Kilometer 6+540 on the Chobe River
By-Pass Road Rock was placed on sand fill slopes and at culvert inlets and
outlets to guard against erosion on numerous sections of the Nata-Kazungula
Road and Chobe River By-Pass Road The Contractor maintained the project
until July 19 1977 when a Certificate of Maintenance was issued
C PROTECT SCHDULING AND DELAYS
On October 5 1973 as required by Clause 12 Part II-Conditions of
Particular Application of the Conditions of Contract - the Contractor submitted
his proposed construction schedule for the project The schedule was returned
to the Contractor on October 16 1973 for modifications It was resubmitted
and finally approved on March 19 1974
-9shy
In October 1974 the Contractor presented a revised construction schedule
It was not approved by the Engineer who informed the Contractor that the
actual rate of progress was far below that projected by the schedule and reshy
quested an explanation as to what steps were contemplated to bring progress
on the project up to schedule
On November 6 1974 the Contractor again presented a revised conshy
struction schedule reflecting a completion date beyond the contract period for
completing the Project The Contractor made reference to conditions which
had allegedly caused delays to progress on the Project and stated that claims
would be presented requesting time extension for completion of the Project
The revised schedule was not approved pending presentation by the Contractor
of all supporting details
By the end of December 1974 the Contractor had completed 29 percent
of the work then specified in the Contract as modified by ten change orders
This compared with 55 percent scheduled to be completed according to the
approved progress schedule
On February 27 1975 the Engineer notified the Contractor that progress
was continuing to fall further behind the approved construction schedule and
requested the Contractor to submit in writing his plans for bringing progress
up to schedule in compliance with pertinent provisions of the Contract On Tuly
24 1975 the Contractor again presented a revised construction schedule reflectshy
ing a completion date of August 31 1976 This schedule was accepted by
the Engineer in September 1975 with the provision that acceptance of the
schedule should in no way be construed as an approval for extension of time
for completion of the project
By the end of 1975 the Contractor had completed 63 percent of the work specified in the contract as compared with 73 percent projected in the revised
construction schedule
On March 11 1976 the Contractor presented the 6th revision of the
construction schedule reflecting a completion date of December 31 1976
This schedule is included herein as Figure 2 The schedule was accepted by
the Engineer on March 24 1976 with the provision that acceptance of this
schedule should in no manner be construed as an approval of extension of time
for completing the project
-0shy
LEGEND CONSTRUCTION PROGRESS CHART BOTSWANA-ZAMBIA HIGHWAY
WORK ELEMENT lt I
MOBILIZATION 7 T z ltgt 7gtlt74gtlaquo 7
GENERAL gt gt lt lt+ $ lt2740gt77
SURVEYS
AND SITE CLEARING
PREPARESUGRADE lt gt
7+47
I EARTHWORKS ~kgt1 E ~gt07 gt0gt0 ~laquolt gtgt~lt7laquogt 77gt
BASE COURSE
SURFACE COURSE ~lt 7ltgtlaquoD4
+4 7iA
gt
ltgt7 77 gtlt4lt
P
DRAINAGE I-shy___MAINTENANCEI I _ _ _ _
FACILITIES - -gt 7 7 7 7lt7 ltgttVViV77W7vV~7~
HIGHWAY HARDWARE lt
CHANGE ORDERS AND I
DAY WORKS lt
TOTAL
VII FINANCIAL SUMMARY
As indicated in Section I-B of this report the funds available (from
AID) for the construction of this project were in the amount of U S $16600000
The disbursements of monies for the construction and construction supervision
through May 31 1978 are summarized in Table 3 along with the original esshy
timated amounts for comparison
TABLE 3
Disbursements Through Original Estimated
May 31 1978 Amounts
US $ RandPula US $ RandPula
Construction Costs (Grove International See Table 5) 882317486 310970881 897784200 316082500
Change Orders (From Table 1) 4276898 - 95829606
Supervision of Construction (TAMS) 129796299 - 135468100 -
TOTALS 1016390683 406800487 1033252300 316082500
From original contracts and supplements through May 31 1978
Table 4 presents a summary of final construction costs including
those by Contract Pay Items disbursed to the Contractor (Grove International)
The above listed costs do not include back charges on the loan which
charges are not available to the Engineer
The Contractor has submitted a series of claims requesting extensions
of time and reimbursement for claimed additional costs These claims are
currently under review by the Engineer A supplemental report will be issued
by the Engineer after the Contractors claims have been resolved and will
include any additional costs and time extensions awarded to the Contractor
Assuming an average rate of exchange of 1000 Pula or 1000 Rand
equal to 1350 U S Dollars and neglecting bank charges the approximate
loan balance as of May 31 1978 was U S $940000
-12shy
An average conversion rate of exchange has been used to estimate
the loan balance since the actual rate varied and actual draw-down figures
are not available to the Engineer
At the time of Project commencement the currency of Botswana was
the Rand In August 1976 the Botswana Government changed over from the
Rand to the Pula as the official currency During the course of construction
local currency disbursements have been made to the Contractor in both Rand
and Pula
-13shy
--- =1m =- M Il-- M=M m -
Sheet 1 of 4TABLE 4 - SCHEDULE OF FINAL CONTRACT QUANTITIES
Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount RandPula
No Description Measure Final Quantities US $ RandPula US $
101 Mobilization Lump Sum 10000 57077200 58360600 -0shy
201 Engineers Staff Housing 2-Bedroom House Each 1 3333 1300000 272100 1300000 272100
202 Engineers Staff Housing 3-Bedroom House Each 3 10000 1400000 339300 4200000 1017900
203 Engineers Staff Housing Technicians House Each 4 10000 650000 130100 2600000 520400
204 Engineers Staff Housing Jr Staff Housing Each 16 10000 112500 19600 1800000 313600
205 Moving amp Re-erection of Engineers Staff Housing Each move NOT APPLICABLE
206 Engineers Main Office Lump Sum 10000 1800000 306300
207 Engineers Main Laboratory Lump Sum 10000 2600000 407700
208 Moving amp Re-erection of Engineers Main Office Each Move NOT A P L I CA B L E and Main Laboratory
209 Engineers Forward OfficeLaboratory Each 2 10000 766300 1532600 -0shy
210 Additional Surveying Office Laboratory and Prime Cost 69809 1500000 1047146 -0-Communication Equipment
211 Contractors Expenses and Profit on Percent 69809 25 261787 -0-Prime Cost Item 210
212 Provide and Maintain Vehicles for ihe Engineers Staff Vmonth 304 Vmonth 24000 17100 7296000 5198400
301 Basic Survey and Setting Out km 370590 km 48500 13400 17973600 4965905
302 Clear Heavy Bush Hectare 514075 ha 23200 7500 11926540 3855563
303 Cleat Light Bush Hectare 70053 ha 15500 5000 10858215 3502650
304 Clear Grassy Hectare 1775 ha 12400 4000 2201000 710000
401 Prepare Sand Subgrade for Embankment m2 3335443 m 2 011 006 36689873 20012658
402 Prepare Clay Subgrade for Embankment m2 408450 m 2 023 011 9394350 4492950
501 Construct Standard Embankment i3 865895 m3 117 047 101309715 40697065
3502 Construct Special Embankment m3 254779 m 196 074 49936684 18853646
030 384035 129450503 Excavate Unsuitable Material m3 4315 m3 089
601 Base Course m3 538854 m3 310 120 167044740 64662480
602 Overhaul of Base Course Material m3km 46462 m3kr 028 010 1300936 464620
701 Remove Overburden from Surface Course Borrow Pits m3 260056 m3 060 016 15603360 4160896
702 Surface Course m3 457260 m3 545 210 249206700 96024600
703 Haul of Surface Course Material m3kmn 6572330 m3kr 0102 0034 67037766 22345922
TABLE 4 (Continued) Sheet 2 of 4
Item No Description
Unit of Measure
Total Revised Final Quantities
Contract Unit Price US $ RandPula
Final Revised Contract Amount US $ RandPula
801
802
803
Excavation and Backfill for Cuiverts up to 48 inches in diameter
Excavations for foundations of Culverts 48 inches and over
Backfilling culverts 48 inches and over
m3
m3
m3
558512 m3
94946 m3
322010 m3
480
270
490
330
140
360
2680858
256352
1577849
1843090
132923
1159236
804 Nestable Galvanized Corrugated Metal Pipe 18 inches in diameter 14 USSG
PIPE LM 249963 LM 4380 820 10948379 2049697
END SECTIONS Each 388 each 6660 225 2584080 87300
805 Nestable Galvanized Corrugated Metal Pipe 24 inches in diameter 14 USSG
PIPE LM 28104 LM 5560 1100 1562582 309144
Supply additional 24 inch diam Pipe 114035
END SECTIONS Each 34 each 10200 800 345800 27200
Supply additional End Sections 30600
806 Nestable Galvanized Corrugated Metal Pipe 36 inches in diameter 12 USSG
PIPE LM 19506 LM 10500 1600 2048130 312096
END SECTIONS Each 28 each 27600 2100 772800 58800
807 Nestable Galvanized Corrugated Metal Pipe 48 inches in diameter 12 USSG
PIPE LM 11522 each 13500 2200 1555470 253484
Supply additional 48 inch diam Pipe 10480
END SECTIONS Each 10 each 76200 4300 762000 43000
808 Nestable Galvanized Corrugated Metal Pipe 60 inches in diameter 10 USSG
PIPE LM 48768 LM 20400 2700 9948672 1316736
Supply additional 60 inch diam Pipe 47510
809
810
811
Excavate inlet and outlet drains mitre ditches and roadway ditches
Sand-cement Pitching
Clay slope Protection
m3
m3
m2
477781 m3
276769 m3
NA
110
2300
030
3000
100
525559
636569
-0-
143334
830307
-0shy
Supplied but not installed
mi -blN mN -m~ m ml m min nmlW arm~ nn- a a a a1 al a
TABLE 4 (Continued) Sheet 3 of 4
Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount No Description
812 Supply Nestable Galvanized Corrugated
Metal Pipe 18 inches in diameter 14 USSG
PIPE
END SECTIONS
901 Construct Maintenance Facility Complex
902 Water Pump
903 Contractors Expenses and Profit on Prime Cost Item 902
1001 Road Signs
1002 Guide Posts
1003 Kilometre Posts
Dayworks
TOTAL-SCHEDULE OF QUANTITIES
a
0) CO I CO 2
TAMS Staff Hotel Accommodation
Air Conditioners TCN Houses
CO 3
CO 4
NA (Progress Payment Permanent Material)
Additional TCN Housing
SUB-TOTAL
CO 5 POL Escalation Cost
CO 6 POL Escalation Cost
CO 7 POL Escalation Cost
SUB-TOTAL
LESS OVERPAYMENT
TOTAL POL ESCALATION COST
CO 8 Interim Allowance (Wage)
CO 9 Wage Escalation Cost
SUB-TOTAL
LESS OVERPAYMENT
TOTAL WAGE ESCALATION COST
Measure
LM
Each
Lump Sum
PC Sum
25
Each
Each
Each
As directed
Each
Final Quantities
238 LM
0 each
98
284 each
900 each
182 each
100
100
100
NA
6
100
100
100
100
100
US $
3400
6700
8520
As Billed
650000
As Shown
As Shown
As Shown
As Shown
As Shown
RandPula
900000
1000
1450
1500
130100
US $
809200
-0-
13014800
-0-
-0-
2419680
-0-
-0-
5999421
882317486
376898
3900000
4276898
RandPula
-0shy
-0shy
7308700
255223
63806
284000
1305000
273000
-0shy
310970881
842138
5307
780600
1628045
575601
1815344
77277517
79668462
1661539
78006923
297802
16022556
16320358
125720
16194638
TABLE 4 (Continued)
Item No Description
Unit of Measure
Total Revised Final Quantities
Contract Unit Price US $ RandPula
Sheet 4 of 4
Final Revised Contract Amount US $ RandPula
CO 10
CO 11
CO 12
Road Reserve cleared way Chobe River By-pass (included under items 302 303 and 304)
Importation Additional Sheeps foot roller (included under item 101)
Minor realignment of roadway at Nata
TOTAL CONSTRUCTION COST
100
100
100
886594384 406800487
ishy
I I I I I I I I
APPENDIX A
I CONSTRUCTION EQUIPMENT
I I I I U I I I I I
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT
I Descqription
2 Chevrolet Impala Sedan
5 jeep-Wagoner
7 jeep-Wagoner
1 Chevrolet Vega
23 Chevrolet Pickup
19 Mack Tractor (T675-8W)
2 Chevrolet Flat Bed
5 Mack-Platform Stake (T426-3500)
1 Mack-2000 Gal Fuel (T426-3500)
4 Mack Dump Truck 10 cy
2 Chevrolet Dump Truck 5 cy
1 Mack-Birmingham Tandum Lowboy Trailer
2 Mack-Gindy 25 Ton Tandum Semi Trailer
8 Heil- P3S 303 cy Dump Trailer
I 7 Fruehauf-TEO-F3-R 10000 Gal Tanker
5 Fruehauf-TEO-F2-R 6500 Gal Tanker
5 Fruehauf-Tandum Axle Dolly
2 Barko 14000 Telescopic Crane
6 Cobey 1062 Wagon Trailer
1 Cedarapids 443 Commander Crusher
1 Peerless Portable Base Stabilisation Plant
2 Atlantic International Water Treatment Plant
6 Caterpillar 631-B TractorS631-B Scraper
7 Caterpillar D8-H Dozer
2 4
Caterpillar D9- Dozer Caterpillar D6-C Dozer
2 Caterpillar 12-F Grader
5 Caterpillar 14-E Grader
U A-i
1
I
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (Cont)
Quantity
4
1
4
11Raygo
1
S1 2
ICaterpillar-200KW 3
1
1
1
1
1
3
2 2
2
I
1
2
2
I
1 2
8
1
j 8
1 4
9
1
Description
Caterpillar 966 Loader
Trojan 4000 Loader
Raygo 400A Compactor Vibrator
410A Compactor Vibrator
Vibro Plus Vibrating Sheepsfoot Roller
Bros 10000 Compactor
Bros 6000 Compactor
Generator Caterpillar - 125KW Generator
Little Reddevil Generator
Kholer 3KW Generator
Kholer 2KW Generator
Detroit Diesel Generator (2D-32)
Kholer Generator (5CKM61)
Hobart GR-3 03 Welders w trolley
Worthington 365 Compressor Worthington 160 Compressor
Kellypower Tamper
John Deere 2700 Disc Harrow10 Cut
ohn Deere 1630 Disc Harrow 7 Cut
Worthington WS-55 Rock Drill
Alemite Portable Service Station
Graco Lube Ranger
Worthington Wagon Drill
Layne Bowler Deep Well Pump
Layne Bowler Pump only
4 Centrifugal Pump
2 Centrifugal Pump
Columbian Steel Water Tanks 20000 US Gal
A-2
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (contd)
Quanti
1I Description
Caterpillar Parallel Shank Ripper
2 Fleco Blade Rake
4 Chainsaw
3 Gardner-Denver Compressor
5 Aerotron Radio Transmitters $1203
7 Aerotron Radio Receivers $2 10
16 SSB Radio Transceivers $1340
8 Auxilliary Radio Transceivers $1340
2 Cevy 4 x 4 Pickup Truck 8 Chevy 2 x 4 Pickup Truck
1 L B Smith Cone Crusher
2 Ford 4 x 4 (1164-14C Tractor)
2 Bros Sheepsfoot Roller
1 Hyster Towed Vibratory Compactor
During 1975 and 1976 the Contractor added the following listed equipment
1 Caterpillar No 14 Motor Grader
1 Caterpillar No 966 Loader
1 Trojan No 4000 Loader
1 Cone Crushing Plant 3 ft Standard Fine Bowl with 4 Deck Screens
4 Conveyor Units
A-3
I 1 I I I U I I
APPENDIX B
I I SOILS AND MATERIALS
I I 1 I I I I I 1
APPENDIX B
SOILS AND MATERIALS
(a) General
The road pavement is composed basically of two layers the surface
course and base course overlaying a compacted subgrade or embankment
The sources and volumes of the surface course and base course materials
are indicated in the Materials Utilization Diagrams included as Figures B-i
through B-4
(b) Subgrade
The subgrade soil consists primarily of aeolian fine sand except
for approximately 36 kilometers of the road for which the subgrade is a pan material consisting of clay In the pan areas special 1 Om thick
embankments were constructed with plasticity and fineness control of material
The subgrade and embankment soils were compacted to a minimum of 90
of modified AASHTO compaction The measured mean relative compaction
obtained immediately after compaction of the subgrade was 935 of the modified AASHTO maximum density
(c) Base Course
The majority of the base course materials are derived from aeolian deposits ie fine sand with a trace to some silty clay The
remaining base bourse approximately 15 of the total was obtained from pits having a large component of gravel The 15cm thick base
course is bank run or blended material for which the amounts of fines
and plasticity were controlled The base course materials were obtained from 123 base borrow pits and compacted to a minimum 95 of modified AASHTO density The measured mean relative compaction
directly after construction was 96 of the modified AASHTO maximum
density
(d) Surface Course
The 15cm thick surface course is well graded sandy gravel with
some silty clay fraction The materials for the road segment from
Kilometer 0+000 to Kilometer 173+000 are derived from calcrete deposits
while the materials for the remaining portion are derived from weathered
3-1
bedrock The surface course has controlled gradation plasticity and
durability to obtain sufficient strength to reduce ravelling to a minimum
particularly during the dry season and to resist the wear of traffic
Surface course materials have been obtained by screening crushing
and blending materials from 9 borrow areas and were compacted to a
minimum of 98 of modified AASUTO maximum dry density The comshy
posite properties for each borrow pit are indicated in the Average
Gradation Ourvesincluded as Figures B-5 through B-13 Directly
after construction of the surface course the measured mean relative
compaction was 100 of the modified AASHTO maximum density
B-2
N A TA K A ZUN GU LA RO0A D 70 033 90 CC
00 00 0 0 0+I 03- 30L K
0 I I
M 3 100 0002L [2
_
MATERIALS UTILIZATION DIAGRAM Fiure -I
NATA - KAZUNGULA ROAD
+--- 121
y T
MATERIALS UTILIZATION DIAGRAM Fgure R-Z
NAT A - KAZ UN GULA ROAD
07 2 230K300 220 220 232 252
I 3 3 2
MATERIALS UTILIZATION DIAGRAM Figure 2-3
itLT-m
CHOBE RIVER BY-PASS ROAD 02__ Q___ 0 60 40 - 0 50 0 i
-F-CEL
-Tl J-II II
MATERIALS UTILIZATION DIAGRAM Figure B-4
3 SIEVE ANALYSIS SMI~ia VIII
IY UN In~ VI STAISRS SIEVE NUMBfh SUE9 - usuLguNuus O-- aoIiUl- I1
11I a to to 0 i oIIIa lf I
II
SN Cu ye B
II N
o
i B _ ___~ N II 1 l s - Curi e At-
I 2 I a 6 4 2 i5 4 3 2 a -
GRAIN I IZE MILTERS
SILT AND CLAY SOILS GRAVEL SAND
I NUMBE1RSAMPLE DEPTH LL KIE IPTIONIELEV P1 ECIT
A Composit 38 19 CrusherAverage Runof 192 samples
B Composit 33 17 Surface Course Blend asAverage of 236 samples placed
MDD 1960 kgm Los Angeles Abrasion = 42 Average Blend Added 15=
REPUBLIC OF BOTSWANA TI PPETTS-ASSETT-NcCAIThY-STRATTOU MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY BOTSWANA-ZAMBIA GRAIN SIZE DISTRIBUTION BY DmArTE Q76HIGHWAY j PIT 2A DOi FIGURE B-5
E ANLYSISSIEVE NALYSIS NI
OPEING - In jS PhIMS-SEVE iNRh3EN son - MILLIMETER
V11 6plusmn SSIEVE
6 i S 0-4 0 10 miUS) 3055 3 001mesa a
9 I I I - -
Crye B
S bull
1TCrii INN20 1 e A- NI deg I FIK 46591 2 a045 4 2 1115 5 2 6
GRIISZ IN MILLIMETERS
COACE iE NtIUM FI SILT AD CLAY SOILSGRAVEL SAND
5r IBSAMPLE DEPTH ELEV LLP1
A Composite 28 10 Crusher Run Average of 229 samples
B Composite 28 11 Surface Course Blend as Placed Average of 58 samples
2050 kgm3 Averaoe Blend Added shy
TIPPETTS-ASETT-NCCARTIY-STATTONREPUBLIC OF BOTSWANA NEW YORK NY
MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS
BRAIN SIZE DISTRIBUTION BY NCZ jAATE9 876BOTSWANA-ZAMBIA
HIGHWAY PIT 14 amp 14A OWN FIGURE B-6
i
S ANALYSIS 01 ANALYSIS
SIEVE - n -IIII- SIZ-MII- - IN i
It a s 1
Ue a -- e B
- 1 -I-[_I - I I I
6l51 10 8 $514 1 O is 05I I 21 8GANSZNILMTR OA RE Filo 9OA-1i 1DI UM F log S ILT AND CLAY SO ILS
GRAVEL nSAND
E--l I UNEASMPLEDEPlTH ELEV LL P1 KWKIPTION
A Composite 36 19 Crusher Run
Average of 116 Samples
B Composite 36 15 Surface Course Blend Average of 138 samples
H GHWA E SA 18 SILT ANDURCLA-SIL
3kgm Los Angeles Abrasion 28
Av agau Pnd AAd = 907 ITI UETT$-ABBTT-NcentcentARTNY-STRATTON
NEW YORK NY
REPUBLIC OF BOTSWANA
MINISTRY OF WORKS amp COM24UNICATIONSIT NINEERS1
I I MGIELI7 I 1 8AIIGIWAE
I
4
SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU
V 1 Oe 001l
- -r--I-I -- I
S E- -IN S
KI zz7llfl$zIIIti z I
low560
20
2
IGRAIN SIZE IN MILLIMETERS
COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS
GRAVEL SAND
SAMP DEPTH ELEV L P1 0NBERIIPTI
A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples
B Composit( 28 13 Surface Course Blend as Placed
Average of 85 samples
Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA
REPUBLIC OF BOTSWANA TI EfTTS-AIETT-NCARTY-STRATTOi ITTqTPI yen O WOVQ A n rn WTraTTn~lz ENGINEERS NEW YOlK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8
-D IUR IB
II SIEVE ANALYIIS 1411 I LYIlMll
[urn $11min - I I ITUSE IVV I - mampINimums1 -l0 n 001
a1 i 4 is s 0 aL w I 2 0665S a a 4 i 0i
-7sl
96---
I RI IE IN M IEER
CfliEI FIN g o au SIT SILFIN M40 5C o432 14593 ry B6
ver 7 samples
NUMBE NERPI
Ay I GRAIN SIZE IN MILLIMETR
5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND
A Q A- Aii dd d~A
IMUBEIRIIIIPIi
3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables
B Composit 26 13 Surface Course BlendU as Placed
Average of 79 samples
AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =
REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9
SIEVE ANALYSIS IMmv na awLYoia
SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I
I- 01 001
e---__
Ir1 -NIP_]
20
OA
$05 9 2
E
I
86543
I
7tN
2 1 65
_OAlEED t
5 2
FN
I
GRAIN SIZE IN MILLIMETERS
1 111I
NU BE GRAVEL
COARSE
I
MEDIUM
I SAND
FSILT AND CLAY SOILS
SAMPLE4 DEP EEY 1 SCBI1PTIORI
A
B
Composite
Composite
38
26
17
13
Crusher Run Basaltic Aggregate
Average of 176 samples
Surface Course Blend -s Placed Average of 58 samples
Average MDD = 2135 kgm Los Angeles Abrasion = 38
Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY
WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971
3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10
SIEVE ANIALYSIS lNVINI1111 ANALYSIS
I EV OPE IN - INI8 TOSIIEENN1-MLII
I
I - - i ii 0
I GRI SIZEto N OILS 1
I ANDLI IS
G VELIZE I
IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL
-APL ESN
DEPTH ELEY LL PI DESCRIPTIONNUSMBE
3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples
B Composite 26 13 Surface Course Blend as Placed Average of 58 samples
Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34
Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY
BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11
___ I
SIEVE ANALYSIS W11 ANKEm SIS
SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS
01 001
sodego
i i
U Ae
6 559 2 a65 3 2 1 6532 S
II GRAIN SIZE INMILLIMETERS
=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL
GRAVEL SN
I SAMPE DEPTH ELEV LL P)S DESCRIPTION
A omposite 28 10 Crusher Run
SAverage of 72 samples
B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples
Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20
REPUBLICUINISTRY 0OF OF
BOTSWANA WORKS amp COMMUNIGTIONS
TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12
I
SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM
-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U
I _
I1li
Ia _ Cu ve
N IC A11
IQI II
1 IG S IIIMETE
I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND
SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION
A Composite 34 15 Crusher Run Average of 74 samples
B Composite 29 12 Surface Course Blend as Placed
Average of 42 samples
MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15
REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA
ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N
NEW sy cKA
YORK NYT E-2 5 1 7 7
HIGHWAY PIT 32A Mwe FIGURE B-13
I I I I I I I I
APPENDIX C
I WATER WELL LOCATIONS
I I I I I I I I I
APPENDIX C WATER WELL LOCATIONS
WELL NO 3
Location Km 171 Lt of centerline 200 meters
Drill - 6 x 392
Ream - 8 x 92
Case - 6 x 84
Test - 24 Hours - 276
Pump 6000 G P H
Total depth - 392
Pumped at 150
24 Hr Drawdown - 3
Water Good
WELL NO 4
Location Km 175 - Lt of centerline 100 meters
Drill - 6 x 380
Ream - 8 x 82
Case - 7 x 82
Test - 276
Pump 1800 G P H
Total depth - 380
Pumped at 200
Drawdown 24 Hr - 100
Water Good
WELL NO 5 (Govt No 2436
Location Km 178 - Lt of centerline 115 meters
Test -276
Pump - 1400 G P H
Total depth - 160
Pumped at 140
24 Hr Drawdown - 60
Water Good C-1
WELL NO 6
Location Km 183 - Lt of centerline 60 meters
Drill - 6 x 436
Ream - 8 x 86
Case - 7 x 86
Test - 276
Pump - 500 G P H
Total depth - 436
Pumped at 250
24 Hr Drawdown - 150
Water Good
WELL NO 7 - (Govt No 2435)
Location Km 189 - Rt of centerline 100 meters
Clean amp Test
Pump - 6000 G P H
Pumped at 140
24 Hr Drawdown - 10
Water Good
WELL NO 14
Location Km 252 - Lt of centerline 100 meters
Drill - 6 x 250
Ream - 8 x 53
Case - 6 x 53
Test - 276
Pump - 6000 G P H
Total depth - 250
Pumped at 150
24 Hr Drawdown - 6
Water Good
C-2
WELL AT KM 256 MAINTENANCE FACILITY NO 3
Location Km 256 - Lt of centerline 200 meters
Depth - 100 feet
Water Rest Level - 42 feet
Depth Pump Set - 70 feet
24 Hr Test - 1800 G P H
WELL NO 15
Location Km 245 - Rt of centerline 40 meters
Drill - 6 x 260
Ream - 8 x 54
Case - 54
Test -276
Pump - 1500 G P H
Total depth - 260
Pumped at 200
24 Hr Drawdown - 140
Water Good
WELL NO 16 Location Km 236 -Rt of centerline 30 meters
Drill - 6 x 250
Ream - 8 x 22
Case - 6 x 22
Test - 276
Pump -6000 G P H
Total depth - 288
Pumped at 150
24 Hr Drawdown - 10
Water Good
C-3
WELL NO 17
Location Km 224 - Rt of centerline 30 meters
Drill - 10 x 89
Case - 8 x 85
Drill- 8x 43
Drill - 6 x 38
Case -6 x 132
Test - 276
Pump -2000 G P H
Total Depth - 170
Pumped at 100
24 Hr Drawdown - 11
Water Good
WELL NO 18
Location Km 217 - Lt of centerline 200 meters
Drill -i0 x 70
Case - 7 x 70
Drill - 7 x 52
Drill - 6 x 88
Case - 6 x 122
Test - 276
Pump 2400 G P H
Total depth - 210
Pumped at 200
24 Hr Drawdown - 140
Water Good
C-4
WELL NO 19
Location Km 213 - Lt of centerline 100 meters
Drill - 10 x 44
Case - 8 x 40
Drill - 8 x 76
Drill 6 x 130
Case - 6 x 120
Test - 276
Pump - 6000 G P H
Total depth - 210
Pumped at 60
24 Hr Drawdown - 10
Water Good
WELL NO 20
Location Km 143 - Rt of centerline 100 meters
Drill - 10 x 240
Case - 7 x 220
Drill -6 x 378
Case - 6 x 240
Case - 5 x 240
Test - 276
Pump -1500 G P H
Total depth - 618
Pumped at 460
24 Hr Drawdown - 105
Water slightly salty to taste but drinkable
C-5
WELL NO 23
Location Km 139 - Lt of centerline 100 meters
Drill - 12 x 290
Place amp Extract Case - 10 x 290
Drill - 8 x 30
Drill - 6 x 40
Case - 8 x 290
Case - 6 x 320
Test - 276
Pump - 1200 G P H
Total depth - 360
Pumped at 330
24 Hr Drawdown - 120
Water salty
WELL NO 24
Location Km 135 - Lt of centerline 500 meters
Drill - 12 x 270
Drill - 10 x 10
Case - 10 x 270
Drill -8 x 30
Case - 8 x 290
Case -6 x 310
Case - 5 x 320
Test -276
Pump -4000 +G P H
Total depth - 320
Pumped at 270
24 Hr Drawdown - 2
Water Salty
C-6
I
5
WELL KM 205 MAINTENANCE FACILITY NO 2
Location Km 105 - Lt of centerline 40 meters
Depth - 302 feet
~ Water Rest Level - 82 feet
Depth Pump Set - 150 feet
48 Hr Test - 3000 + G P H
WELL NO 26
Location Km 82 - Lt of centerline 100 meters
Drill - 12 x 145
5 -8 x145
Drill - 8 x 23
-Case
I Drill - 7 x 10
Case - 7 x 168
I Case - 6 x178
Test - 276
Pump - 1200 G P H
Total depth - 306
I Pumped at 140
24 Hr Drawdown - 35
I Water Good
C
I 0-7
WELL NO 27
Location Km 77 - Lt of centerline 100 meters
Drill - 12 x 174
Install amp Extract Case - 10 x 174
Case - 8 x 174
Drill - 9 x 68
Drill - 8 x 64
Case - 7 x 242
Case - 6 x 306
Test - 276
Pump - 4000 + G P H
Total Depth - 306
Pumpe at 240
24 Hr Drawdown - 0
Water Good
WELL NO 28- (Govt No 2465)
Location Km 63 - Rt of centerline 100 meters
Clean amp Extract Case - 300
Ream - 10 x 98
Ream - 8x 27
Ream - 6 x 12
Case - 8 x 98
Case - 6 x 125
Test - 276
Pump - 1000 + G P H
Total depth - 137
Pumped at 130
24 Hr Drawdown - 33
Water Good
C-8
WELL NO 30
Location Km 47 - Rt of centerline 400 meters
Drill - 12 x 132
Case - 10 x 89
Install amp Extract Case - 12 x 43
Drill - 10 x 117
Case - 7 x 242
Drill - 6 x 183
Install amp Extract Case - 6 x 408
Test - 276
Pump - 1000 G P H
Total depth - 408
Pumped at 160
24 Hr Drawdown - 77
Water Salty
WELL NO 31
- Lt of centerline 200 metersLocation Km 44
Drill - 12 x 110
Case - 10 x 100
Drill - 10 x 142
Case 8 x 142
Drill - 8 x 250
Case 7 x 392
Drill - 6 x 78
Test - 276
Pump - 3000 G P H
Total depth - 502
Pumped at 160
24 Hr Drawdown - 44
Water Salty
C-9
WELL NO 32
Location Km 42 - Lt of centerline 100 meters
Drill - 12 x 108
Case - 10 x 108
Drill - 10 x 212
Drill - 8 x 120
Case - 6 x 340
Case - 8 x 182
Test - 276
Pump - 3000 + G P H
Total depth - 448
Pumped at 160
24 Hr Drawdown - 20
Water Salty
WELL NO 34
Location Km 35 - Lt of centerline 200 meters
Drill - 12 x 230
Install amp Extract Case - 10 x 230
Drill - 8 x 30
Case -6 x 260
Drill - 6 x 160
Case -5 x 324
Case - 8 x 20
Test - 276
Pump -1000 + G P H
Total depth - 420
Pumped at 150
24 Hr Drawdown - 100
Water Salty
C-10
WELL NO 36
Location Km 7 N E along old track from Km 63
Drill - 12 x 180
Case - 10 x 180
Drill - 10 x 231
Case - 8 x 211
Drill- 8x 254
Case - 6 x 245
Test -276
Pump -4000 + G P H
Total depth - 265
Pumped at 180
24 Hr Drawdown - 0
Water Good
C-11
I 3 I 1 I I I I B j APPENDDC D
SYNOPSIS 0 KEY CORRESPONDENCE
3 DURING CONSTRUCTION
I pound I I I 1 I I
On September 1 1973 the Contractor confirmed the
estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts
On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project
On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be
obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated
On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine
On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation
On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension
On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension
On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval
On October 15 1973 the Engineer returned the construction progress schedule for correction
On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim
D-I
On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor
On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project
On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25
On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter
On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents
On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract
On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised
On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading
On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule
On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request
On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period
D-2
On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report
On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material
On August 19 1974 the Contractor submitted an updated construction progress schedule for approval
On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases
On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor
On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor
On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project
On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course
On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country
On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course
On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions
On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule
On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress
D-3
On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract
On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana
On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor
On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion
On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations
On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases
On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season
On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees
On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections
On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project
On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course
On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project
On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract
D-4
October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request
On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor
On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620
On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project
On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y
completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense
On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted
On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project
On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim
On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic
On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor
On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976
D-5
On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time
On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares
On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material
On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500
On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor
On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula
On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana
OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected
On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road
On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road
Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10
On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued
On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced
On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091
On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091
Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued
D-6
I I IUUU U U UU I U
E PROJECT PHOTOGRAPHS
I IIIU U I
I Crushing Plants Surface Course
Pit 2A
Pug Mill Blending Surface Course
Pit 25A
II Surface Course
Pit 25A
UURYPTOERTOSE Pug Mil Blending
Road Reserve Bush Clearing
Km 242
U
Embankment Construction Km 287
IN
Road Construction Water Supply
Km 189
ROADWAY UNDER CONSTRUTION
II
E-2
Stockpiling Material Base Course
Special Embankment Construction Km 232
Watering of Embankment Km 257
ROADWAY UNDER CONSTRUCTION E-3
Culvert Assembly
Twin Culvert with Sand-Cement Pitching
Multiple Culverts with Sand-Cement Pitching
CULVERT INSTALLATIONS E- 4
AT Km 25
AT Km 194
Emergency Landing Strip Kra 2605
FINISHED ROADWAY E- 5
AT Km 286
AT Chobe By-Pass Junction Km 297
I Chobe By-Pass Road Near Ngoma Bridge
E-6FINISHED ROADWAY
In October 1974 the Contractor presented a revised construction schedule
It was not approved by the Engineer who informed the Contractor that the
actual rate of progress was far below that projected by the schedule and reshy
quested an explanation as to what steps were contemplated to bring progress
on the project up to schedule
On November 6 1974 the Contractor again presented a revised conshy
struction schedule reflecting a completion date beyond the contract period for
completing the Project The Contractor made reference to conditions which
had allegedly caused delays to progress on the Project and stated that claims
would be presented requesting time extension for completion of the Project
The revised schedule was not approved pending presentation by the Contractor
of all supporting details
By the end of December 1974 the Contractor had completed 29 percent
of the work then specified in the Contract as modified by ten change orders
This compared with 55 percent scheduled to be completed according to the
approved progress schedule
On February 27 1975 the Engineer notified the Contractor that progress
was continuing to fall further behind the approved construction schedule and
requested the Contractor to submit in writing his plans for bringing progress
up to schedule in compliance with pertinent provisions of the Contract On Tuly
24 1975 the Contractor again presented a revised construction schedule reflectshy
ing a completion date of August 31 1976 This schedule was accepted by
the Engineer in September 1975 with the provision that acceptance of the
schedule should in no way be construed as an approval for extension of time
for completion of the project
By the end of 1975 the Contractor had completed 63 percent of the work specified in the contract as compared with 73 percent projected in the revised
construction schedule
On March 11 1976 the Contractor presented the 6th revision of the
construction schedule reflecting a completion date of December 31 1976
This schedule is included herein as Figure 2 The schedule was accepted by
the Engineer on March 24 1976 with the provision that acceptance of this
schedule should in no manner be construed as an approval of extension of time
for completing the project
-0shy
LEGEND CONSTRUCTION PROGRESS CHART BOTSWANA-ZAMBIA HIGHWAY
WORK ELEMENT lt I
MOBILIZATION 7 T z ltgt 7gtlt74gtlaquo 7
GENERAL gt gt lt lt+ $ lt2740gt77
SURVEYS
AND SITE CLEARING
PREPARESUGRADE lt gt
7+47
I EARTHWORKS ~kgt1 E ~gt07 gt0gt0 ~laquolt gtgt~lt7laquogt 77gt
BASE COURSE
SURFACE COURSE ~lt 7ltgtlaquoD4
+4 7iA
gt
ltgt7 77 gtlt4lt
P
DRAINAGE I-shy___MAINTENANCEI I _ _ _ _
FACILITIES - -gt 7 7 7 7lt7 ltgttVViV77W7vV~7~
HIGHWAY HARDWARE lt
CHANGE ORDERS AND I
DAY WORKS lt
TOTAL
VII FINANCIAL SUMMARY
As indicated in Section I-B of this report the funds available (from
AID) for the construction of this project were in the amount of U S $16600000
The disbursements of monies for the construction and construction supervision
through May 31 1978 are summarized in Table 3 along with the original esshy
timated amounts for comparison
TABLE 3
Disbursements Through Original Estimated
May 31 1978 Amounts
US $ RandPula US $ RandPula
Construction Costs (Grove International See Table 5) 882317486 310970881 897784200 316082500
Change Orders (From Table 1) 4276898 - 95829606
Supervision of Construction (TAMS) 129796299 - 135468100 -
TOTALS 1016390683 406800487 1033252300 316082500
From original contracts and supplements through May 31 1978
Table 4 presents a summary of final construction costs including
those by Contract Pay Items disbursed to the Contractor (Grove International)
The above listed costs do not include back charges on the loan which
charges are not available to the Engineer
The Contractor has submitted a series of claims requesting extensions
of time and reimbursement for claimed additional costs These claims are
currently under review by the Engineer A supplemental report will be issued
by the Engineer after the Contractors claims have been resolved and will
include any additional costs and time extensions awarded to the Contractor
Assuming an average rate of exchange of 1000 Pula or 1000 Rand
equal to 1350 U S Dollars and neglecting bank charges the approximate
loan balance as of May 31 1978 was U S $940000
-12shy
An average conversion rate of exchange has been used to estimate
the loan balance since the actual rate varied and actual draw-down figures
are not available to the Engineer
At the time of Project commencement the currency of Botswana was
the Rand In August 1976 the Botswana Government changed over from the
Rand to the Pula as the official currency During the course of construction
local currency disbursements have been made to the Contractor in both Rand
and Pula
-13shy
--- =1m =- M Il-- M=M m -
Sheet 1 of 4TABLE 4 - SCHEDULE OF FINAL CONTRACT QUANTITIES
Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount RandPula
No Description Measure Final Quantities US $ RandPula US $
101 Mobilization Lump Sum 10000 57077200 58360600 -0shy
201 Engineers Staff Housing 2-Bedroom House Each 1 3333 1300000 272100 1300000 272100
202 Engineers Staff Housing 3-Bedroom House Each 3 10000 1400000 339300 4200000 1017900
203 Engineers Staff Housing Technicians House Each 4 10000 650000 130100 2600000 520400
204 Engineers Staff Housing Jr Staff Housing Each 16 10000 112500 19600 1800000 313600
205 Moving amp Re-erection of Engineers Staff Housing Each move NOT APPLICABLE
206 Engineers Main Office Lump Sum 10000 1800000 306300
207 Engineers Main Laboratory Lump Sum 10000 2600000 407700
208 Moving amp Re-erection of Engineers Main Office Each Move NOT A P L I CA B L E and Main Laboratory
209 Engineers Forward OfficeLaboratory Each 2 10000 766300 1532600 -0shy
210 Additional Surveying Office Laboratory and Prime Cost 69809 1500000 1047146 -0-Communication Equipment
211 Contractors Expenses and Profit on Percent 69809 25 261787 -0-Prime Cost Item 210
212 Provide and Maintain Vehicles for ihe Engineers Staff Vmonth 304 Vmonth 24000 17100 7296000 5198400
301 Basic Survey and Setting Out km 370590 km 48500 13400 17973600 4965905
302 Clear Heavy Bush Hectare 514075 ha 23200 7500 11926540 3855563
303 Cleat Light Bush Hectare 70053 ha 15500 5000 10858215 3502650
304 Clear Grassy Hectare 1775 ha 12400 4000 2201000 710000
401 Prepare Sand Subgrade for Embankment m2 3335443 m 2 011 006 36689873 20012658
402 Prepare Clay Subgrade for Embankment m2 408450 m 2 023 011 9394350 4492950
501 Construct Standard Embankment i3 865895 m3 117 047 101309715 40697065
3502 Construct Special Embankment m3 254779 m 196 074 49936684 18853646
030 384035 129450503 Excavate Unsuitable Material m3 4315 m3 089
601 Base Course m3 538854 m3 310 120 167044740 64662480
602 Overhaul of Base Course Material m3km 46462 m3kr 028 010 1300936 464620
701 Remove Overburden from Surface Course Borrow Pits m3 260056 m3 060 016 15603360 4160896
702 Surface Course m3 457260 m3 545 210 249206700 96024600
703 Haul of Surface Course Material m3kmn 6572330 m3kr 0102 0034 67037766 22345922
TABLE 4 (Continued) Sheet 2 of 4
Item No Description
Unit of Measure
Total Revised Final Quantities
Contract Unit Price US $ RandPula
Final Revised Contract Amount US $ RandPula
801
802
803
Excavation and Backfill for Cuiverts up to 48 inches in diameter
Excavations for foundations of Culverts 48 inches and over
Backfilling culverts 48 inches and over
m3
m3
m3
558512 m3
94946 m3
322010 m3
480
270
490
330
140
360
2680858
256352
1577849
1843090
132923
1159236
804 Nestable Galvanized Corrugated Metal Pipe 18 inches in diameter 14 USSG
PIPE LM 249963 LM 4380 820 10948379 2049697
END SECTIONS Each 388 each 6660 225 2584080 87300
805 Nestable Galvanized Corrugated Metal Pipe 24 inches in diameter 14 USSG
PIPE LM 28104 LM 5560 1100 1562582 309144
Supply additional 24 inch diam Pipe 114035
END SECTIONS Each 34 each 10200 800 345800 27200
Supply additional End Sections 30600
806 Nestable Galvanized Corrugated Metal Pipe 36 inches in diameter 12 USSG
PIPE LM 19506 LM 10500 1600 2048130 312096
END SECTIONS Each 28 each 27600 2100 772800 58800
807 Nestable Galvanized Corrugated Metal Pipe 48 inches in diameter 12 USSG
PIPE LM 11522 each 13500 2200 1555470 253484
Supply additional 48 inch diam Pipe 10480
END SECTIONS Each 10 each 76200 4300 762000 43000
808 Nestable Galvanized Corrugated Metal Pipe 60 inches in diameter 10 USSG
PIPE LM 48768 LM 20400 2700 9948672 1316736
Supply additional 60 inch diam Pipe 47510
809
810
811
Excavate inlet and outlet drains mitre ditches and roadway ditches
Sand-cement Pitching
Clay slope Protection
m3
m3
m2
477781 m3
276769 m3
NA
110
2300
030
3000
100
525559
636569
-0-
143334
830307
-0shy
Supplied but not installed
mi -blN mN -m~ m ml m min nmlW arm~ nn- a a a a1 al a
TABLE 4 (Continued) Sheet 3 of 4
Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount No Description
812 Supply Nestable Galvanized Corrugated
Metal Pipe 18 inches in diameter 14 USSG
PIPE
END SECTIONS
901 Construct Maintenance Facility Complex
902 Water Pump
903 Contractors Expenses and Profit on Prime Cost Item 902
1001 Road Signs
1002 Guide Posts
1003 Kilometre Posts
Dayworks
TOTAL-SCHEDULE OF QUANTITIES
a
0) CO I CO 2
TAMS Staff Hotel Accommodation
Air Conditioners TCN Houses
CO 3
CO 4
NA (Progress Payment Permanent Material)
Additional TCN Housing
SUB-TOTAL
CO 5 POL Escalation Cost
CO 6 POL Escalation Cost
CO 7 POL Escalation Cost
SUB-TOTAL
LESS OVERPAYMENT
TOTAL POL ESCALATION COST
CO 8 Interim Allowance (Wage)
CO 9 Wage Escalation Cost
SUB-TOTAL
LESS OVERPAYMENT
TOTAL WAGE ESCALATION COST
Measure
LM
Each
Lump Sum
PC Sum
25
Each
Each
Each
As directed
Each
Final Quantities
238 LM
0 each
98
284 each
900 each
182 each
100
100
100
NA
6
100
100
100
100
100
US $
3400
6700
8520
As Billed
650000
As Shown
As Shown
As Shown
As Shown
As Shown
RandPula
900000
1000
1450
1500
130100
US $
809200
-0-
13014800
-0-
-0-
2419680
-0-
-0-
5999421
882317486
376898
3900000
4276898
RandPula
-0shy
-0shy
7308700
255223
63806
284000
1305000
273000
-0shy
310970881
842138
5307
780600
1628045
575601
1815344
77277517
79668462
1661539
78006923
297802
16022556
16320358
125720
16194638
TABLE 4 (Continued)
Item No Description
Unit of Measure
Total Revised Final Quantities
Contract Unit Price US $ RandPula
Sheet 4 of 4
Final Revised Contract Amount US $ RandPula
CO 10
CO 11
CO 12
Road Reserve cleared way Chobe River By-pass (included under items 302 303 and 304)
Importation Additional Sheeps foot roller (included under item 101)
Minor realignment of roadway at Nata
TOTAL CONSTRUCTION COST
100
100
100
886594384 406800487
ishy
I I I I I I I I
APPENDIX A
I CONSTRUCTION EQUIPMENT
I I I I U I I I I I
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT
I Descqription
2 Chevrolet Impala Sedan
5 jeep-Wagoner
7 jeep-Wagoner
1 Chevrolet Vega
23 Chevrolet Pickup
19 Mack Tractor (T675-8W)
2 Chevrolet Flat Bed
5 Mack-Platform Stake (T426-3500)
1 Mack-2000 Gal Fuel (T426-3500)
4 Mack Dump Truck 10 cy
2 Chevrolet Dump Truck 5 cy
1 Mack-Birmingham Tandum Lowboy Trailer
2 Mack-Gindy 25 Ton Tandum Semi Trailer
8 Heil- P3S 303 cy Dump Trailer
I 7 Fruehauf-TEO-F3-R 10000 Gal Tanker
5 Fruehauf-TEO-F2-R 6500 Gal Tanker
5 Fruehauf-Tandum Axle Dolly
2 Barko 14000 Telescopic Crane
6 Cobey 1062 Wagon Trailer
1 Cedarapids 443 Commander Crusher
1 Peerless Portable Base Stabilisation Plant
2 Atlantic International Water Treatment Plant
6 Caterpillar 631-B TractorS631-B Scraper
7 Caterpillar D8-H Dozer
2 4
Caterpillar D9- Dozer Caterpillar D6-C Dozer
2 Caterpillar 12-F Grader
5 Caterpillar 14-E Grader
U A-i
1
I
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (Cont)
Quantity
4
1
4
11Raygo
1
S1 2
ICaterpillar-200KW 3
1
1
1
1
1
3
2 2
2
I
1
2
2
I
1 2
8
1
j 8
1 4
9
1
Description
Caterpillar 966 Loader
Trojan 4000 Loader
Raygo 400A Compactor Vibrator
410A Compactor Vibrator
Vibro Plus Vibrating Sheepsfoot Roller
Bros 10000 Compactor
Bros 6000 Compactor
Generator Caterpillar - 125KW Generator
Little Reddevil Generator
Kholer 3KW Generator
Kholer 2KW Generator
Detroit Diesel Generator (2D-32)
Kholer Generator (5CKM61)
Hobart GR-3 03 Welders w trolley
Worthington 365 Compressor Worthington 160 Compressor
Kellypower Tamper
John Deere 2700 Disc Harrow10 Cut
ohn Deere 1630 Disc Harrow 7 Cut
Worthington WS-55 Rock Drill
Alemite Portable Service Station
Graco Lube Ranger
Worthington Wagon Drill
Layne Bowler Deep Well Pump
Layne Bowler Pump only
4 Centrifugal Pump
2 Centrifugal Pump
Columbian Steel Water Tanks 20000 US Gal
A-2
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (contd)
Quanti
1I Description
Caterpillar Parallel Shank Ripper
2 Fleco Blade Rake
4 Chainsaw
3 Gardner-Denver Compressor
5 Aerotron Radio Transmitters $1203
7 Aerotron Radio Receivers $2 10
16 SSB Radio Transceivers $1340
8 Auxilliary Radio Transceivers $1340
2 Cevy 4 x 4 Pickup Truck 8 Chevy 2 x 4 Pickup Truck
1 L B Smith Cone Crusher
2 Ford 4 x 4 (1164-14C Tractor)
2 Bros Sheepsfoot Roller
1 Hyster Towed Vibratory Compactor
During 1975 and 1976 the Contractor added the following listed equipment
1 Caterpillar No 14 Motor Grader
1 Caterpillar No 966 Loader
1 Trojan No 4000 Loader
1 Cone Crushing Plant 3 ft Standard Fine Bowl with 4 Deck Screens
4 Conveyor Units
A-3
I 1 I I I U I I
APPENDIX B
I I SOILS AND MATERIALS
I I 1 I I I I I 1
APPENDIX B
SOILS AND MATERIALS
(a) General
The road pavement is composed basically of two layers the surface
course and base course overlaying a compacted subgrade or embankment
The sources and volumes of the surface course and base course materials
are indicated in the Materials Utilization Diagrams included as Figures B-i
through B-4
(b) Subgrade
The subgrade soil consists primarily of aeolian fine sand except
for approximately 36 kilometers of the road for which the subgrade is a pan material consisting of clay In the pan areas special 1 Om thick
embankments were constructed with plasticity and fineness control of material
The subgrade and embankment soils were compacted to a minimum of 90
of modified AASHTO compaction The measured mean relative compaction
obtained immediately after compaction of the subgrade was 935 of the modified AASHTO maximum density
(c) Base Course
The majority of the base course materials are derived from aeolian deposits ie fine sand with a trace to some silty clay The
remaining base bourse approximately 15 of the total was obtained from pits having a large component of gravel The 15cm thick base
course is bank run or blended material for which the amounts of fines
and plasticity were controlled The base course materials were obtained from 123 base borrow pits and compacted to a minimum 95 of modified AASHTO density The measured mean relative compaction
directly after construction was 96 of the modified AASHTO maximum
density
(d) Surface Course
The 15cm thick surface course is well graded sandy gravel with
some silty clay fraction The materials for the road segment from
Kilometer 0+000 to Kilometer 173+000 are derived from calcrete deposits
while the materials for the remaining portion are derived from weathered
3-1
bedrock The surface course has controlled gradation plasticity and
durability to obtain sufficient strength to reduce ravelling to a minimum
particularly during the dry season and to resist the wear of traffic
Surface course materials have been obtained by screening crushing
and blending materials from 9 borrow areas and were compacted to a
minimum of 98 of modified AASUTO maximum dry density The comshy
posite properties for each borrow pit are indicated in the Average
Gradation Ourvesincluded as Figures B-5 through B-13 Directly
after construction of the surface course the measured mean relative
compaction was 100 of the modified AASHTO maximum density
B-2
N A TA K A ZUN GU LA RO0A D 70 033 90 CC
00 00 0 0 0+I 03- 30L K
0 I I
M 3 100 0002L [2
_
MATERIALS UTILIZATION DIAGRAM Fiure -I
NATA - KAZUNGULA ROAD
+--- 121
y T
MATERIALS UTILIZATION DIAGRAM Fgure R-Z
NAT A - KAZ UN GULA ROAD
07 2 230K300 220 220 232 252
I 3 3 2
MATERIALS UTILIZATION DIAGRAM Figure 2-3
itLT-m
CHOBE RIVER BY-PASS ROAD 02__ Q___ 0 60 40 - 0 50 0 i
-F-CEL
-Tl J-II II
MATERIALS UTILIZATION DIAGRAM Figure B-4
3 SIEVE ANALYSIS SMI~ia VIII
IY UN In~ VI STAISRS SIEVE NUMBfh SUE9 - usuLguNuus O-- aoIiUl- I1
11I a to to 0 i oIIIa lf I
II
SN Cu ye B
II N
o
i B _ ___~ N II 1 l s - Curi e At-
I 2 I a 6 4 2 i5 4 3 2 a -
GRAIN I IZE MILTERS
SILT AND CLAY SOILS GRAVEL SAND
I NUMBE1RSAMPLE DEPTH LL KIE IPTIONIELEV P1 ECIT
A Composit 38 19 CrusherAverage Runof 192 samples
B Composit 33 17 Surface Course Blend asAverage of 236 samples placed
MDD 1960 kgm Los Angeles Abrasion = 42 Average Blend Added 15=
REPUBLIC OF BOTSWANA TI PPETTS-ASSETT-NcCAIThY-STRATTOU MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY BOTSWANA-ZAMBIA GRAIN SIZE DISTRIBUTION BY DmArTE Q76HIGHWAY j PIT 2A DOi FIGURE B-5
E ANLYSISSIEVE NALYSIS NI
OPEING - In jS PhIMS-SEVE iNRh3EN son - MILLIMETER
V11 6plusmn SSIEVE
6 i S 0-4 0 10 miUS) 3055 3 001mesa a
9 I I I - -
Crye B
S bull
1TCrii INN20 1 e A- NI deg I FIK 46591 2 a045 4 2 1115 5 2 6
GRIISZ IN MILLIMETERS
COACE iE NtIUM FI SILT AD CLAY SOILSGRAVEL SAND
5r IBSAMPLE DEPTH ELEV LLP1
A Composite 28 10 Crusher Run Average of 229 samples
B Composite 28 11 Surface Course Blend as Placed Average of 58 samples
2050 kgm3 Averaoe Blend Added shy
TIPPETTS-ASETT-NCCARTIY-STATTONREPUBLIC OF BOTSWANA NEW YORK NY
MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS
BRAIN SIZE DISTRIBUTION BY NCZ jAATE9 876BOTSWANA-ZAMBIA
HIGHWAY PIT 14 amp 14A OWN FIGURE B-6
i
S ANALYSIS 01 ANALYSIS
SIEVE - n -IIII- SIZ-MII- - IN i
It a s 1
Ue a -- e B
- 1 -I-[_I - I I I
6l51 10 8 $514 1 O is 05I I 21 8GANSZNILMTR OA RE Filo 9OA-1i 1DI UM F log S ILT AND CLAY SO ILS
GRAVEL nSAND
E--l I UNEASMPLEDEPlTH ELEV LL P1 KWKIPTION
A Composite 36 19 Crusher Run
Average of 116 Samples
B Composite 36 15 Surface Course Blend Average of 138 samples
H GHWA E SA 18 SILT ANDURCLA-SIL
3kgm Los Angeles Abrasion 28
Av agau Pnd AAd = 907 ITI UETT$-ABBTT-NcentcentARTNY-STRATTON
NEW YORK NY
REPUBLIC OF BOTSWANA
MINISTRY OF WORKS amp COM24UNICATIONSIT NINEERS1
I I MGIELI7 I 1 8AIIGIWAE
I
4
SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU
V 1 Oe 001l
- -r--I-I -- I
S E- -IN S
KI zz7llfl$zIIIti z I
low560
20
2
IGRAIN SIZE IN MILLIMETERS
COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS
GRAVEL SAND
SAMP DEPTH ELEV L P1 0NBERIIPTI
A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples
B Composit( 28 13 Surface Course Blend as Placed
Average of 85 samples
Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA
REPUBLIC OF BOTSWANA TI EfTTS-AIETT-NCARTY-STRATTOi ITTqTPI yen O WOVQ A n rn WTraTTn~lz ENGINEERS NEW YOlK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8
-D IUR IB
II SIEVE ANALYIIS 1411 I LYIlMll
[urn $11min - I I ITUSE IVV I - mampINimums1 -l0 n 001
a1 i 4 is s 0 aL w I 2 0665S a a 4 i 0i
-7sl
96---
I RI IE IN M IEER
CfliEI FIN g o au SIT SILFIN M40 5C o432 14593 ry B6
ver 7 samples
NUMBE NERPI
Ay I GRAIN SIZE IN MILLIMETR
5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND
A Q A- Aii dd d~A
IMUBEIRIIIIPIi
3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables
B Composit 26 13 Surface Course BlendU as Placed
Average of 79 samples
AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =
REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9
SIEVE ANALYSIS IMmv na awLYoia
SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I
I- 01 001
e---__
Ir1 -NIP_]
20
OA
$05 9 2
E
I
86543
I
7tN
2 1 65
_OAlEED t
5 2
FN
I
GRAIN SIZE IN MILLIMETERS
1 111I
NU BE GRAVEL
COARSE
I
MEDIUM
I SAND
FSILT AND CLAY SOILS
SAMPLE4 DEP EEY 1 SCBI1PTIORI
A
B
Composite
Composite
38
26
17
13
Crusher Run Basaltic Aggregate
Average of 176 samples
Surface Course Blend -s Placed Average of 58 samples
Average MDD = 2135 kgm Los Angeles Abrasion = 38
Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY
WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971
3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10
SIEVE ANIALYSIS lNVINI1111 ANALYSIS
I EV OPE IN - INI8 TOSIIEENN1-MLII
I
I - - i ii 0
I GRI SIZEto N OILS 1
I ANDLI IS
G VELIZE I
IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL
-APL ESN
DEPTH ELEY LL PI DESCRIPTIONNUSMBE
3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples
B Composite 26 13 Surface Course Blend as Placed Average of 58 samples
Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34
Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY
BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11
___ I
SIEVE ANALYSIS W11 ANKEm SIS
SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS
01 001
sodego
i i
U Ae
6 559 2 a65 3 2 1 6532 S
II GRAIN SIZE INMILLIMETERS
=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL
GRAVEL SN
I SAMPE DEPTH ELEV LL P)S DESCRIPTION
A omposite 28 10 Crusher Run
SAverage of 72 samples
B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples
Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20
REPUBLICUINISTRY 0OF OF
BOTSWANA WORKS amp COMMUNIGTIONS
TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12
I
SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM
-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U
I _
I1li
Ia _ Cu ve
N IC A11
IQI II
1 IG S IIIMETE
I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND
SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION
A Composite 34 15 Crusher Run Average of 74 samples
B Composite 29 12 Surface Course Blend as Placed
Average of 42 samples
MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15
REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA
ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N
NEW sy cKA
YORK NYT E-2 5 1 7 7
HIGHWAY PIT 32A Mwe FIGURE B-13
I I I I I I I I
APPENDIX C
I WATER WELL LOCATIONS
I I I I I I I I I
APPENDIX C WATER WELL LOCATIONS
WELL NO 3
Location Km 171 Lt of centerline 200 meters
Drill - 6 x 392
Ream - 8 x 92
Case - 6 x 84
Test - 24 Hours - 276
Pump 6000 G P H
Total depth - 392
Pumped at 150
24 Hr Drawdown - 3
Water Good
WELL NO 4
Location Km 175 - Lt of centerline 100 meters
Drill - 6 x 380
Ream - 8 x 82
Case - 7 x 82
Test - 276
Pump 1800 G P H
Total depth - 380
Pumped at 200
Drawdown 24 Hr - 100
Water Good
WELL NO 5 (Govt No 2436
Location Km 178 - Lt of centerline 115 meters
Test -276
Pump - 1400 G P H
Total depth - 160
Pumped at 140
24 Hr Drawdown - 60
Water Good C-1
WELL NO 6
Location Km 183 - Lt of centerline 60 meters
Drill - 6 x 436
Ream - 8 x 86
Case - 7 x 86
Test - 276
Pump - 500 G P H
Total depth - 436
Pumped at 250
24 Hr Drawdown - 150
Water Good
WELL NO 7 - (Govt No 2435)
Location Km 189 - Rt of centerline 100 meters
Clean amp Test
Pump - 6000 G P H
Pumped at 140
24 Hr Drawdown - 10
Water Good
WELL NO 14
Location Km 252 - Lt of centerline 100 meters
Drill - 6 x 250
Ream - 8 x 53
Case - 6 x 53
Test - 276
Pump - 6000 G P H
Total depth - 250
Pumped at 150
24 Hr Drawdown - 6
Water Good
C-2
WELL AT KM 256 MAINTENANCE FACILITY NO 3
Location Km 256 - Lt of centerline 200 meters
Depth - 100 feet
Water Rest Level - 42 feet
Depth Pump Set - 70 feet
24 Hr Test - 1800 G P H
WELL NO 15
Location Km 245 - Rt of centerline 40 meters
Drill - 6 x 260
Ream - 8 x 54
Case - 54
Test -276
Pump - 1500 G P H
Total depth - 260
Pumped at 200
24 Hr Drawdown - 140
Water Good
WELL NO 16 Location Km 236 -Rt of centerline 30 meters
Drill - 6 x 250
Ream - 8 x 22
Case - 6 x 22
Test - 276
Pump -6000 G P H
Total depth - 288
Pumped at 150
24 Hr Drawdown - 10
Water Good
C-3
WELL NO 17
Location Km 224 - Rt of centerline 30 meters
Drill - 10 x 89
Case - 8 x 85
Drill- 8x 43
Drill - 6 x 38
Case -6 x 132
Test - 276
Pump -2000 G P H
Total Depth - 170
Pumped at 100
24 Hr Drawdown - 11
Water Good
WELL NO 18
Location Km 217 - Lt of centerline 200 meters
Drill -i0 x 70
Case - 7 x 70
Drill - 7 x 52
Drill - 6 x 88
Case - 6 x 122
Test - 276
Pump 2400 G P H
Total depth - 210
Pumped at 200
24 Hr Drawdown - 140
Water Good
C-4
WELL NO 19
Location Km 213 - Lt of centerline 100 meters
Drill - 10 x 44
Case - 8 x 40
Drill - 8 x 76
Drill 6 x 130
Case - 6 x 120
Test - 276
Pump - 6000 G P H
Total depth - 210
Pumped at 60
24 Hr Drawdown - 10
Water Good
WELL NO 20
Location Km 143 - Rt of centerline 100 meters
Drill - 10 x 240
Case - 7 x 220
Drill -6 x 378
Case - 6 x 240
Case - 5 x 240
Test - 276
Pump -1500 G P H
Total depth - 618
Pumped at 460
24 Hr Drawdown - 105
Water slightly salty to taste but drinkable
C-5
WELL NO 23
Location Km 139 - Lt of centerline 100 meters
Drill - 12 x 290
Place amp Extract Case - 10 x 290
Drill - 8 x 30
Drill - 6 x 40
Case - 8 x 290
Case - 6 x 320
Test - 276
Pump - 1200 G P H
Total depth - 360
Pumped at 330
24 Hr Drawdown - 120
Water salty
WELL NO 24
Location Km 135 - Lt of centerline 500 meters
Drill - 12 x 270
Drill - 10 x 10
Case - 10 x 270
Drill -8 x 30
Case - 8 x 290
Case -6 x 310
Case - 5 x 320
Test -276
Pump -4000 +G P H
Total depth - 320
Pumped at 270
24 Hr Drawdown - 2
Water Salty
C-6
I
5
WELL KM 205 MAINTENANCE FACILITY NO 2
Location Km 105 - Lt of centerline 40 meters
Depth - 302 feet
~ Water Rest Level - 82 feet
Depth Pump Set - 150 feet
48 Hr Test - 3000 + G P H
WELL NO 26
Location Km 82 - Lt of centerline 100 meters
Drill - 12 x 145
5 -8 x145
Drill - 8 x 23
-Case
I Drill - 7 x 10
Case - 7 x 168
I Case - 6 x178
Test - 276
Pump - 1200 G P H
Total depth - 306
I Pumped at 140
24 Hr Drawdown - 35
I Water Good
C
I 0-7
WELL NO 27
Location Km 77 - Lt of centerline 100 meters
Drill - 12 x 174
Install amp Extract Case - 10 x 174
Case - 8 x 174
Drill - 9 x 68
Drill - 8 x 64
Case - 7 x 242
Case - 6 x 306
Test - 276
Pump - 4000 + G P H
Total Depth - 306
Pumpe at 240
24 Hr Drawdown - 0
Water Good
WELL NO 28- (Govt No 2465)
Location Km 63 - Rt of centerline 100 meters
Clean amp Extract Case - 300
Ream - 10 x 98
Ream - 8x 27
Ream - 6 x 12
Case - 8 x 98
Case - 6 x 125
Test - 276
Pump - 1000 + G P H
Total depth - 137
Pumped at 130
24 Hr Drawdown - 33
Water Good
C-8
WELL NO 30
Location Km 47 - Rt of centerline 400 meters
Drill - 12 x 132
Case - 10 x 89
Install amp Extract Case - 12 x 43
Drill - 10 x 117
Case - 7 x 242
Drill - 6 x 183
Install amp Extract Case - 6 x 408
Test - 276
Pump - 1000 G P H
Total depth - 408
Pumped at 160
24 Hr Drawdown - 77
Water Salty
WELL NO 31
- Lt of centerline 200 metersLocation Km 44
Drill - 12 x 110
Case - 10 x 100
Drill - 10 x 142
Case 8 x 142
Drill - 8 x 250
Case 7 x 392
Drill - 6 x 78
Test - 276
Pump - 3000 G P H
Total depth - 502
Pumped at 160
24 Hr Drawdown - 44
Water Salty
C-9
WELL NO 32
Location Km 42 - Lt of centerline 100 meters
Drill - 12 x 108
Case - 10 x 108
Drill - 10 x 212
Drill - 8 x 120
Case - 6 x 340
Case - 8 x 182
Test - 276
Pump - 3000 + G P H
Total depth - 448
Pumped at 160
24 Hr Drawdown - 20
Water Salty
WELL NO 34
Location Km 35 - Lt of centerline 200 meters
Drill - 12 x 230
Install amp Extract Case - 10 x 230
Drill - 8 x 30
Case -6 x 260
Drill - 6 x 160
Case -5 x 324
Case - 8 x 20
Test - 276
Pump -1000 + G P H
Total depth - 420
Pumped at 150
24 Hr Drawdown - 100
Water Salty
C-10
WELL NO 36
Location Km 7 N E along old track from Km 63
Drill - 12 x 180
Case - 10 x 180
Drill - 10 x 231
Case - 8 x 211
Drill- 8x 254
Case - 6 x 245
Test -276
Pump -4000 + G P H
Total depth - 265
Pumped at 180
24 Hr Drawdown - 0
Water Good
C-11
I 3 I 1 I I I I B j APPENDDC D
SYNOPSIS 0 KEY CORRESPONDENCE
3 DURING CONSTRUCTION
I pound I I I 1 I I
On September 1 1973 the Contractor confirmed the
estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts
On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project
On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be
obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated
On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine
On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation
On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension
On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension
On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval
On October 15 1973 the Engineer returned the construction progress schedule for correction
On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim
D-I
On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor
On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project
On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25
On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter
On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents
On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract
On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised
On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading
On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule
On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request
On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period
D-2
On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report
On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material
On August 19 1974 the Contractor submitted an updated construction progress schedule for approval
On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases
On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor
On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor
On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project
On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course
On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country
On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course
On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions
On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule
On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress
D-3
On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract
On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana
On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor
On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion
On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations
On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases
On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season
On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees
On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections
On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project
On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course
On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project
On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract
D-4
October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request
On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor
On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620
On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project
On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y
completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense
On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted
On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project
On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim
On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic
On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor
On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976
D-5
On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time
On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares
On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material
On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500
On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor
On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula
On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana
OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected
On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road
On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road
Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10
On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued
On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced
On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091
On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091
Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued
D-6
I I IUUU U U UU I U
E PROJECT PHOTOGRAPHS
I IIIU U I
I Crushing Plants Surface Course
Pit 2A
Pug Mill Blending Surface Course
Pit 25A
II Surface Course
Pit 25A
UURYPTOERTOSE Pug Mil Blending
Road Reserve Bush Clearing
Km 242
U
Embankment Construction Km 287
IN
Road Construction Water Supply
Km 189
ROADWAY UNDER CONSTRUTION
II
E-2
Stockpiling Material Base Course
Special Embankment Construction Km 232
Watering of Embankment Km 257
ROADWAY UNDER CONSTRUCTION E-3
Culvert Assembly
Twin Culvert with Sand-Cement Pitching
Multiple Culverts with Sand-Cement Pitching
CULVERT INSTALLATIONS E- 4
AT Km 25
AT Km 194
Emergency Landing Strip Kra 2605
FINISHED ROADWAY E- 5
AT Km 286
AT Chobe By-Pass Junction Km 297
I Chobe By-Pass Road Near Ngoma Bridge
E-6FINISHED ROADWAY
LEGEND CONSTRUCTION PROGRESS CHART BOTSWANA-ZAMBIA HIGHWAY
WORK ELEMENT lt I
MOBILIZATION 7 T z ltgt 7gtlt74gtlaquo 7
GENERAL gt gt lt lt+ $ lt2740gt77
SURVEYS
AND SITE CLEARING
PREPARESUGRADE lt gt
7+47
I EARTHWORKS ~kgt1 E ~gt07 gt0gt0 ~laquolt gtgt~lt7laquogt 77gt
BASE COURSE
SURFACE COURSE ~lt 7ltgtlaquoD4
+4 7iA
gt
ltgt7 77 gtlt4lt
P
DRAINAGE I-shy___MAINTENANCEI I _ _ _ _
FACILITIES - -gt 7 7 7 7lt7 ltgttVViV77W7vV~7~
HIGHWAY HARDWARE lt
CHANGE ORDERS AND I
DAY WORKS lt
TOTAL
VII FINANCIAL SUMMARY
As indicated in Section I-B of this report the funds available (from
AID) for the construction of this project were in the amount of U S $16600000
The disbursements of monies for the construction and construction supervision
through May 31 1978 are summarized in Table 3 along with the original esshy
timated amounts for comparison
TABLE 3
Disbursements Through Original Estimated
May 31 1978 Amounts
US $ RandPula US $ RandPula
Construction Costs (Grove International See Table 5) 882317486 310970881 897784200 316082500
Change Orders (From Table 1) 4276898 - 95829606
Supervision of Construction (TAMS) 129796299 - 135468100 -
TOTALS 1016390683 406800487 1033252300 316082500
From original contracts and supplements through May 31 1978
Table 4 presents a summary of final construction costs including
those by Contract Pay Items disbursed to the Contractor (Grove International)
The above listed costs do not include back charges on the loan which
charges are not available to the Engineer
The Contractor has submitted a series of claims requesting extensions
of time and reimbursement for claimed additional costs These claims are
currently under review by the Engineer A supplemental report will be issued
by the Engineer after the Contractors claims have been resolved and will
include any additional costs and time extensions awarded to the Contractor
Assuming an average rate of exchange of 1000 Pula or 1000 Rand
equal to 1350 U S Dollars and neglecting bank charges the approximate
loan balance as of May 31 1978 was U S $940000
-12shy
An average conversion rate of exchange has been used to estimate
the loan balance since the actual rate varied and actual draw-down figures
are not available to the Engineer
At the time of Project commencement the currency of Botswana was
the Rand In August 1976 the Botswana Government changed over from the
Rand to the Pula as the official currency During the course of construction
local currency disbursements have been made to the Contractor in both Rand
and Pula
-13shy
--- =1m =- M Il-- M=M m -
Sheet 1 of 4TABLE 4 - SCHEDULE OF FINAL CONTRACT QUANTITIES
Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount RandPula
No Description Measure Final Quantities US $ RandPula US $
101 Mobilization Lump Sum 10000 57077200 58360600 -0shy
201 Engineers Staff Housing 2-Bedroom House Each 1 3333 1300000 272100 1300000 272100
202 Engineers Staff Housing 3-Bedroom House Each 3 10000 1400000 339300 4200000 1017900
203 Engineers Staff Housing Technicians House Each 4 10000 650000 130100 2600000 520400
204 Engineers Staff Housing Jr Staff Housing Each 16 10000 112500 19600 1800000 313600
205 Moving amp Re-erection of Engineers Staff Housing Each move NOT APPLICABLE
206 Engineers Main Office Lump Sum 10000 1800000 306300
207 Engineers Main Laboratory Lump Sum 10000 2600000 407700
208 Moving amp Re-erection of Engineers Main Office Each Move NOT A P L I CA B L E and Main Laboratory
209 Engineers Forward OfficeLaboratory Each 2 10000 766300 1532600 -0shy
210 Additional Surveying Office Laboratory and Prime Cost 69809 1500000 1047146 -0-Communication Equipment
211 Contractors Expenses and Profit on Percent 69809 25 261787 -0-Prime Cost Item 210
212 Provide and Maintain Vehicles for ihe Engineers Staff Vmonth 304 Vmonth 24000 17100 7296000 5198400
301 Basic Survey and Setting Out km 370590 km 48500 13400 17973600 4965905
302 Clear Heavy Bush Hectare 514075 ha 23200 7500 11926540 3855563
303 Cleat Light Bush Hectare 70053 ha 15500 5000 10858215 3502650
304 Clear Grassy Hectare 1775 ha 12400 4000 2201000 710000
401 Prepare Sand Subgrade for Embankment m2 3335443 m 2 011 006 36689873 20012658
402 Prepare Clay Subgrade for Embankment m2 408450 m 2 023 011 9394350 4492950
501 Construct Standard Embankment i3 865895 m3 117 047 101309715 40697065
3502 Construct Special Embankment m3 254779 m 196 074 49936684 18853646
030 384035 129450503 Excavate Unsuitable Material m3 4315 m3 089
601 Base Course m3 538854 m3 310 120 167044740 64662480
602 Overhaul of Base Course Material m3km 46462 m3kr 028 010 1300936 464620
701 Remove Overburden from Surface Course Borrow Pits m3 260056 m3 060 016 15603360 4160896
702 Surface Course m3 457260 m3 545 210 249206700 96024600
703 Haul of Surface Course Material m3kmn 6572330 m3kr 0102 0034 67037766 22345922
TABLE 4 (Continued) Sheet 2 of 4
Item No Description
Unit of Measure
Total Revised Final Quantities
Contract Unit Price US $ RandPula
Final Revised Contract Amount US $ RandPula
801
802
803
Excavation and Backfill for Cuiverts up to 48 inches in diameter
Excavations for foundations of Culverts 48 inches and over
Backfilling culverts 48 inches and over
m3
m3
m3
558512 m3
94946 m3
322010 m3
480
270
490
330
140
360
2680858
256352
1577849
1843090
132923
1159236
804 Nestable Galvanized Corrugated Metal Pipe 18 inches in diameter 14 USSG
PIPE LM 249963 LM 4380 820 10948379 2049697
END SECTIONS Each 388 each 6660 225 2584080 87300
805 Nestable Galvanized Corrugated Metal Pipe 24 inches in diameter 14 USSG
PIPE LM 28104 LM 5560 1100 1562582 309144
Supply additional 24 inch diam Pipe 114035
END SECTIONS Each 34 each 10200 800 345800 27200
Supply additional End Sections 30600
806 Nestable Galvanized Corrugated Metal Pipe 36 inches in diameter 12 USSG
PIPE LM 19506 LM 10500 1600 2048130 312096
END SECTIONS Each 28 each 27600 2100 772800 58800
807 Nestable Galvanized Corrugated Metal Pipe 48 inches in diameter 12 USSG
PIPE LM 11522 each 13500 2200 1555470 253484
Supply additional 48 inch diam Pipe 10480
END SECTIONS Each 10 each 76200 4300 762000 43000
808 Nestable Galvanized Corrugated Metal Pipe 60 inches in diameter 10 USSG
PIPE LM 48768 LM 20400 2700 9948672 1316736
Supply additional 60 inch diam Pipe 47510
809
810
811
Excavate inlet and outlet drains mitre ditches and roadway ditches
Sand-cement Pitching
Clay slope Protection
m3
m3
m2
477781 m3
276769 m3
NA
110
2300
030
3000
100
525559
636569
-0-
143334
830307
-0shy
Supplied but not installed
mi -blN mN -m~ m ml m min nmlW arm~ nn- a a a a1 al a
TABLE 4 (Continued) Sheet 3 of 4
Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount No Description
812 Supply Nestable Galvanized Corrugated
Metal Pipe 18 inches in diameter 14 USSG
PIPE
END SECTIONS
901 Construct Maintenance Facility Complex
902 Water Pump
903 Contractors Expenses and Profit on Prime Cost Item 902
1001 Road Signs
1002 Guide Posts
1003 Kilometre Posts
Dayworks
TOTAL-SCHEDULE OF QUANTITIES
a
0) CO I CO 2
TAMS Staff Hotel Accommodation
Air Conditioners TCN Houses
CO 3
CO 4
NA (Progress Payment Permanent Material)
Additional TCN Housing
SUB-TOTAL
CO 5 POL Escalation Cost
CO 6 POL Escalation Cost
CO 7 POL Escalation Cost
SUB-TOTAL
LESS OVERPAYMENT
TOTAL POL ESCALATION COST
CO 8 Interim Allowance (Wage)
CO 9 Wage Escalation Cost
SUB-TOTAL
LESS OVERPAYMENT
TOTAL WAGE ESCALATION COST
Measure
LM
Each
Lump Sum
PC Sum
25
Each
Each
Each
As directed
Each
Final Quantities
238 LM
0 each
98
284 each
900 each
182 each
100
100
100
NA
6
100
100
100
100
100
US $
3400
6700
8520
As Billed
650000
As Shown
As Shown
As Shown
As Shown
As Shown
RandPula
900000
1000
1450
1500
130100
US $
809200
-0-
13014800
-0-
-0-
2419680
-0-
-0-
5999421
882317486
376898
3900000
4276898
RandPula
-0shy
-0shy
7308700
255223
63806
284000
1305000
273000
-0shy
310970881
842138
5307
780600
1628045
575601
1815344
77277517
79668462
1661539
78006923
297802
16022556
16320358
125720
16194638
TABLE 4 (Continued)
Item No Description
Unit of Measure
Total Revised Final Quantities
Contract Unit Price US $ RandPula
Sheet 4 of 4
Final Revised Contract Amount US $ RandPula
CO 10
CO 11
CO 12
Road Reserve cleared way Chobe River By-pass (included under items 302 303 and 304)
Importation Additional Sheeps foot roller (included under item 101)
Minor realignment of roadway at Nata
TOTAL CONSTRUCTION COST
100
100
100
886594384 406800487
ishy
I I I I I I I I
APPENDIX A
I CONSTRUCTION EQUIPMENT
I I I I U I I I I I
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT
I Descqription
2 Chevrolet Impala Sedan
5 jeep-Wagoner
7 jeep-Wagoner
1 Chevrolet Vega
23 Chevrolet Pickup
19 Mack Tractor (T675-8W)
2 Chevrolet Flat Bed
5 Mack-Platform Stake (T426-3500)
1 Mack-2000 Gal Fuel (T426-3500)
4 Mack Dump Truck 10 cy
2 Chevrolet Dump Truck 5 cy
1 Mack-Birmingham Tandum Lowboy Trailer
2 Mack-Gindy 25 Ton Tandum Semi Trailer
8 Heil- P3S 303 cy Dump Trailer
I 7 Fruehauf-TEO-F3-R 10000 Gal Tanker
5 Fruehauf-TEO-F2-R 6500 Gal Tanker
5 Fruehauf-Tandum Axle Dolly
2 Barko 14000 Telescopic Crane
6 Cobey 1062 Wagon Trailer
1 Cedarapids 443 Commander Crusher
1 Peerless Portable Base Stabilisation Plant
2 Atlantic International Water Treatment Plant
6 Caterpillar 631-B TractorS631-B Scraper
7 Caterpillar D8-H Dozer
2 4
Caterpillar D9- Dozer Caterpillar D6-C Dozer
2 Caterpillar 12-F Grader
5 Caterpillar 14-E Grader
U A-i
1
I
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (Cont)
Quantity
4
1
4
11Raygo
1
S1 2
ICaterpillar-200KW 3
1
1
1
1
1
3
2 2
2
I
1
2
2
I
1 2
8
1
j 8
1 4
9
1
Description
Caterpillar 966 Loader
Trojan 4000 Loader
Raygo 400A Compactor Vibrator
410A Compactor Vibrator
Vibro Plus Vibrating Sheepsfoot Roller
Bros 10000 Compactor
Bros 6000 Compactor
Generator Caterpillar - 125KW Generator
Little Reddevil Generator
Kholer 3KW Generator
Kholer 2KW Generator
Detroit Diesel Generator (2D-32)
Kholer Generator (5CKM61)
Hobart GR-3 03 Welders w trolley
Worthington 365 Compressor Worthington 160 Compressor
Kellypower Tamper
John Deere 2700 Disc Harrow10 Cut
ohn Deere 1630 Disc Harrow 7 Cut
Worthington WS-55 Rock Drill
Alemite Portable Service Station
Graco Lube Ranger
Worthington Wagon Drill
Layne Bowler Deep Well Pump
Layne Bowler Pump only
4 Centrifugal Pump
2 Centrifugal Pump
Columbian Steel Water Tanks 20000 US Gal
A-2
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (contd)
Quanti
1I Description
Caterpillar Parallel Shank Ripper
2 Fleco Blade Rake
4 Chainsaw
3 Gardner-Denver Compressor
5 Aerotron Radio Transmitters $1203
7 Aerotron Radio Receivers $2 10
16 SSB Radio Transceivers $1340
8 Auxilliary Radio Transceivers $1340
2 Cevy 4 x 4 Pickup Truck 8 Chevy 2 x 4 Pickup Truck
1 L B Smith Cone Crusher
2 Ford 4 x 4 (1164-14C Tractor)
2 Bros Sheepsfoot Roller
1 Hyster Towed Vibratory Compactor
During 1975 and 1976 the Contractor added the following listed equipment
1 Caterpillar No 14 Motor Grader
1 Caterpillar No 966 Loader
1 Trojan No 4000 Loader
1 Cone Crushing Plant 3 ft Standard Fine Bowl with 4 Deck Screens
4 Conveyor Units
A-3
I 1 I I I U I I
APPENDIX B
I I SOILS AND MATERIALS
I I 1 I I I I I 1
APPENDIX B
SOILS AND MATERIALS
(a) General
The road pavement is composed basically of two layers the surface
course and base course overlaying a compacted subgrade or embankment
The sources and volumes of the surface course and base course materials
are indicated in the Materials Utilization Diagrams included as Figures B-i
through B-4
(b) Subgrade
The subgrade soil consists primarily of aeolian fine sand except
for approximately 36 kilometers of the road for which the subgrade is a pan material consisting of clay In the pan areas special 1 Om thick
embankments were constructed with plasticity and fineness control of material
The subgrade and embankment soils were compacted to a minimum of 90
of modified AASHTO compaction The measured mean relative compaction
obtained immediately after compaction of the subgrade was 935 of the modified AASHTO maximum density
(c) Base Course
The majority of the base course materials are derived from aeolian deposits ie fine sand with a trace to some silty clay The
remaining base bourse approximately 15 of the total was obtained from pits having a large component of gravel The 15cm thick base
course is bank run or blended material for which the amounts of fines
and plasticity were controlled The base course materials were obtained from 123 base borrow pits and compacted to a minimum 95 of modified AASHTO density The measured mean relative compaction
directly after construction was 96 of the modified AASHTO maximum
density
(d) Surface Course
The 15cm thick surface course is well graded sandy gravel with
some silty clay fraction The materials for the road segment from
Kilometer 0+000 to Kilometer 173+000 are derived from calcrete deposits
while the materials for the remaining portion are derived from weathered
3-1
bedrock The surface course has controlled gradation plasticity and
durability to obtain sufficient strength to reduce ravelling to a minimum
particularly during the dry season and to resist the wear of traffic
Surface course materials have been obtained by screening crushing
and blending materials from 9 borrow areas and were compacted to a
minimum of 98 of modified AASUTO maximum dry density The comshy
posite properties for each borrow pit are indicated in the Average
Gradation Ourvesincluded as Figures B-5 through B-13 Directly
after construction of the surface course the measured mean relative
compaction was 100 of the modified AASHTO maximum density
B-2
N A TA K A ZUN GU LA RO0A D 70 033 90 CC
00 00 0 0 0+I 03- 30L K
0 I I
M 3 100 0002L [2
_
MATERIALS UTILIZATION DIAGRAM Fiure -I
NATA - KAZUNGULA ROAD
+--- 121
y T
MATERIALS UTILIZATION DIAGRAM Fgure R-Z
NAT A - KAZ UN GULA ROAD
07 2 230K300 220 220 232 252
I 3 3 2
MATERIALS UTILIZATION DIAGRAM Figure 2-3
itLT-m
CHOBE RIVER BY-PASS ROAD 02__ Q___ 0 60 40 - 0 50 0 i
-F-CEL
-Tl J-II II
MATERIALS UTILIZATION DIAGRAM Figure B-4
3 SIEVE ANALYSIS SMI~ia VIII
IY UN In~ VI STAISRS SIEVE NUMBfh SUE9 - usuLguNuus O-- aoIiUl- I1
11I a to to 0 i oIIIa lf I
II
SN Cu ye B
II N
o
i B _ ___~ N II 1 l s - Curi e At-
I 2 I a 6 4 2 i5 4 3 2 a -
GRAIN I IZE MILTERS
SILT AND CLAY SOILS GRAVEL SAND
I NUMBE1RSAMPLE DEPTH LL KIE IPTIONIELEV P1 ECIT
A Composit 38 19 CrusherAverage Runof 192 samples
B Composit 33 17 Surface Course Blend asAverage of 236 samples placed
MDD 1960 kgm Los Angeles Abrasion = 42 Average Blend Added 15=
REPUBLIC OF BOTSWANA TI PPETTS-ASSETT-NcCAIThY-STRATTOU MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY BOTSWANA-ZAMBIA GRAIN SIZE DISTRIBUTION BY DmArTE Q76HIGHWAY j PIT 2A DOi FIGURE B-5
E ANLYSISSIEVE NALYSIS NI
OPEING - In jS PhIMS-SEVE iNRh3EN son - MILLIMETER
V11 6plusmn SSIEVE
6 i S 0-4 0 10 miUS) 3055 3 001mesa a
9 I I I - -
Crye B
S bull
1TCrii INN20 1 e A- NI deg I FIK 46591 2 a045 4 2 1115 5 2 6
GRIISZ IN MILLIMETERS
COACE iE NtIUM FI SILT AD CLAY SOILSGRAVEL SAND
5r IBSAMPLE DEPTH ELEV LLP1
A Composite 28 10 Crusher Run Average of 229 samples
B Composite 28 11 Surface Course Blend as Placed Average of 58 samples
2050 kgm3 Averaoe Blend Added shy
TIPPETTS-ASETT-NCCARTIY-STATTONREPUBLIC OF BOTSWANA NEW YORK NY
MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS
BRAIN SIZE DISTRIBUTION BY NCZ jAATE9 876BOTSWANA-ZAMBIA
HIGHWAY PIT 14 amp 14A OWN FIGURE B-6
i
S ANALYSIS 01 ANALYSIS
SIEVE - n -IIII- SIZ-MII- - IN i
It a s 1
Ue a -- e B
- 1 -I-[_I - I I I
6l51 10 8 $514 1 O is 05I I 21 8GANSZNILMTR OA RE Filo 9OA-1i 1DI UM F log S ILT AND CLAY SO ILS
GRAVEL nSAND
E--l I UNEASMPLEDEPlTH ELEV LL P1 KWKIPTION
A Composite 36 19 Crusher Run
Average of 116 Samples
B Composite 36 15 Surface Course Blend Average of 138 samples
H GHWA E SA 18 SILT ANDURCLA-SIL
3kgm Los Angeles Abrasion 28
Av agau Pnd AAd = 907 ITI UETT$-ABBTT-NcentcentARTNY-STRATTON
NEW YORK NY
REPUBLIC OF BOTSWANA
MINISTRY OF WORKS amp COM24UNICATIONSIT NINEERS1
I I MGIELI7 I 1 8AIIGIWAE
I
4
SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU
V 1 Oe 001l
- -r--I-I -- I
S E- -IN S
KI zz7llfl$zIIIti z I
low560
20
2
IGRAIN SIZE IN MILLIMETERS
COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS
GRAVEL SAND
SAMP DEPTH ELEV L P1 0NBERIIPTI
A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples
B Composit( 28 13 Surface Course Blend as Placed
Average of 85 samples
Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA
REPUBLIC OF BOTSWANA TI EfTTS-AIETT-NCARTY-STRATTOi ITTqTPI yen O WOVQ A n rn WTraTTn~lz ENGINEERS NEW YOlK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8
-D IUR IB
II SIEVE ANALYIIS 1411 I LYIlMll
[urn $11min - I I ITUSE IVV I - mampINimums1 -l0 n 001
a1 i 4 is s 0 aL w I 2 0665S a a 4 i 0i
-7sl
96---
I RI IE IN M IEER
CfliEI FIN g o au SIT SILFIN M40 5C o432 14593 ry B6
ver 7 samples
NUMBE NERPI
Ay I GRAIN SIZE IN MILLIMETR
5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND
A Q A- Aii dd d~A
IMUBEIRIIIIPIi
3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables
B Composit 26 13 Surface Course BlendU as Placed
Average of 79 samples
AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =
REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9
SIEVE ANALYSIS IMmv na awLYoia
SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I
I- 01 001
e---__
Ir1 -NIP_]
20
OA
$05 9 2
E
I
86543
I
7tN
2 1 65
_OAlEED t
5 2
FN
I
GRAIN SIZE IN MILLIMETERS
1 111I
NU BE GRAVEL
COARSE
I
MEDIUM
I SAND
FSILT AND CLAY SOILS
SAMPLE4 DEP EEY 1 SCBI1PTIORI
A
B
Composite
Composite
38
26
17
13
Crusher Run Basaltic Aggregate
Average of 176 samples
Surface Course Blend -s Placed Average of 58 samples
Average MDD = 2135 kgm Los Angeles Abrasion = 38
Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY
WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971
3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10
SIEVE ANIALYSIS lNVINI1111 ANALYSIS
I EV OPE IN - INI8 TOSIIEENN1-MLII
I
I - - i ii 0
I GRI SIZEto N OILS 1
I ANDLI IS
G VELIZE I
IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL
-APL ESN
DEPTH ELEY LL PI DESCRIPTIONNUSMBE
3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples
B Composite 26 13 Surface Course Blend as Placed Average of 58 samples
Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34
Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY
BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11
___ I
SIEVE ANALYSIS W11 ANKEm SIS
SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS
01 001
sodego
i i
U Ae
6 559 2 a65 3 2 1 6532 S
II GRAIN SIZE INMILLIMETERS
=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL
GRAVEL SN
I SAMPE DEPTH ELEV LL P)S DESCRIPTION
A omposite 28 10 Crusher Run
SAverage of 72 samples
B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples
Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20
REPUBLICUINISTRY 0OF OF
BOTSWANA WORKS amp COMMUNIGTIONS
TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12
I
SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM
-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U
I _
I1li
Ia _ Cu ve
N IC A11
IQI II
1 IG S IIIMETE
I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND
SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION
A Composite 34 15 Crusher Run Average of 74 samples
B Composite 29 12 Surface Course Blend as Placed
Average of 42 samples
MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15
REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA
ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N
NEW sy cKA
YORK NYT E-2 5 1 7 7
HIGHWAY PIT 32A Mwe FIGURE B-13
I I I I I I I I
APPENDIX C
I WATER WELL LOCATIONS
I I I I I I I I I
APPENDIX C WATER WELL LOCATIONS
WELL NO 3
Location Km 171 Lt of centerline 200 meters
Drill - 6 x 392
Ream - 8 x 92
Case - 6 x 84
Test - 24 Hours - 276
Pump 6000 G P H
Total depth - 392
Pumped at 150
24 Hr Drawdown - 3
Water Good
WELL NO 4
Location Km 175 - Lt of centerline 100 meters
Drill - 6 x 380
Ream - 8 x 82
Case - 7 x 82
Test - 276
Pump 1800 G P H
Total depth - 380
Pumped at 200
Drawdown 24 Hr - 100
Water Good
WELL NO 5 (Govt No 2436
Location Km 178 - Lt of centerline 115 meters
Test -276
Pump - 1400 G P H
Total depth - 160
Pumped at 140
24 Hr Drawdown - 60
Water Good C-1
WELL NO 6
Location Km 183 - Lt of centerline 60 meters
Drill - 6 x 436
Ream - 8 x 86
Case - 7 x 86
Test - 276
Pump - 500 G P H
Total depth - 436
Pumped at 250
24 Hr Drawdown - 150
Water Good
WELL NO 7 - (Govt No 2435)
Location Km 189 - Rt of centerline 100 meters
Clean amp Test
Pump - 6000 G P H
Pumped at 140
24 Hr Drawdown - 10
Water Good
WELL NO 14
Location Km 252 - Lt of centerline 100 meters
Drill - 6 x 250
Ream - 8 x 53
Case - 6 x 53
Test - 276
Pump - 6000 G P H
Total depth - 250
Pumped at 150
24 Hr Drawdown - 6
Water Good
C-2
WELL AT KM 256 MAINTENANCE FACILITY NO 3
Location Km 256 - Lt of centerline 200 meters
Depth - 100 feet
Water Rest Level - 42 feet
Depth Pump Set - 70 feet
24 Hr Test - 1800 G P H
WELL NO 15
Location Km 245 - Rt of centerline 40 meters
Drill - 6 x 260
Ream - 8 x 54
Case - 54
Test -276
Pump - 1500 G P H
Total depth - 260
Pumped at 200
24 Hr Drawdown - 140
Water Good
WELL NO 16 Location Km 236 -Rt of centerline 30 meters
Drill - 6 x 250
Ream - 8 x 22
Case - 6 x 22
Test - 276
Pump -6000 G P H
Total depth - 288
Pumped at 150
24 Hr Drawdown - 10
Water Good
C-3
WELL NO 17
Location Km 224 - Rt of centerline 30 meters
Drill - 10 x 89
Case - 8 x 85
Drill- 8x 43
Drill - 6 x 38
Case -6 x 132
Test - 276
Pump -2000 G P H
Total Depth - 170
Pumped at 100
24 Hr Drawdown - 11
Water Good
WELL NO 18
Location Km 217 - Lt of centerline 200 meters
Drill -i0 x 70
Case - 7 x 70
Drill - 7 x 52
Drill - 6 x 88
Case - 6 x 122
Test - 276
Pump 2400 G P H
Total depth - 210
Pumped at 200
24 Hr Drawdown - 140
Water Good
C-4
WELL NO 19
Location Km 213 - Lt of centerline 100 meters
Drill - 10 x 44
Case - 8 x 40
Drill - 8 x 76
Drill 6 x 130
Case - 6 x 120
Test - 276
Pump - 6000 G P H
Total depth - 210
Pumped at 60
24 Hr Drawdown - 10
Water Good
WELL NO 20
Location Km 143 - Rt of centerline 100 meters
Drill - 10 x 240
Case - 7 x 220
Drill -6 x 378
Case - 6 x 240
Case - 5 x 240
Test - 276
Pump -1500 G P H
Total depth - 618
Pumped at 460
24 Hr Drawdown - 105
Water slightly salty to taste but drinkable
C-5
WELL NO 23
Location Km 139 - Lt of centerline 100 meters
Drill - 12 x 290
Place amp Extract Case - 10 x 290
Drill - 8 x 30
Drill - 6 x 40
Case - 8 x 290
Case - 6 x 320
Test - 276
Pump - 1200 G P H
Total depth - 360
Pumped at 330
24 Hr Drawdown - 120
Water salty
WELL NO 24
Location Km 135 - Lt of centerline 500 meters
Drill - 12 x 270
Drill - 10 x 10
Case - 10 x 270
Drill -8 x 30
Case - 8 x 290
Case -6 x 310
Case - 5 x 320
Test -276
Pump -4000 +G P H
Total depth - 320
Pumped at 270
24 Hr Drawdown - 2
Water Salty
C-6
I
5
WELL KM 205 MAINTENANCE FACILITY NO 2
Location Km 105 - Lt of centerline 40 meters
Depth - 302 feet
~ Water Rest Level - 82 feet
Depth Pump Set - 150 feet
48 Hr Test - 3000 + G P H
WELL NO 26
Location Km 82 - Lt of centerline 100 meters
Drill - 12 x 145
5 -8 x145
Drill - 8 x 23
-Case
I Drill - 7 x 10
Case - 7 x 168
I Case - 6 x178
Test - 276
Pump - 1200 G P H
Total depth - 306
I Pumped at 140
24 Hr Drawdown - 35
I Water Good
C
I 0-7
WELL NO 27
Location Km 77 - Lt of centerline 100 meters
Drill - 12 x 174
Install amp Extract Case - 10 x 174
Case - 8 x 174
Drill - 9 x 68
Drill - 8 x 64
Case - 7 x 242
Case - 6 x 306
Test - 276
Pump - 4000 + G P H
Total Depth - 306
Pumpe at 240
24 Hr Drawdown - 0
Water Good
WELL NO 28- (Govt No 2465)
Location Km 63 - Rt of centerline 100 meters
Clean amp Extract Case - 300
Ream - 10 x 98
Ream - 8x 27
Ream - 6 x 12
Case - 8 x 98
Case - 6 x 125
Test - 276
Pump - 1000 + G P H
Total depth - 137
Pumped at 130
24 Hr Drawdown - 33
Water Good
C-8
WELL NO 30
Location Km 47 - Rt of centerline 400 meters
Drill - 12 x 132
Case - 10 x 89
Install amp Extract Case - 12 x 43
Drill - 10 x 117
Case - 7 x 242
Drill - 6 x 183
Install amp Extract Case - 6 x 408
Test - 276
Pump - 1000 G P H
Total depth - 408
Pumped at 160
24 Hr Drawdown - 77
Water Salty
WELL NO 31
- Lt of centerline 200 metersLocation Km 44
Drill - 12 x 110
Case - 10 x 100
Drill - 10 x 142
Case 8 x 142
Drill - 8 x 250
Case 7 x 392
Drill - 6 x 78
Test - 276
Pump - 3000 G P H
Total depth - 502
Pumped at 160
24 Hr Drawdown - 44
Water Salty
C-9
WELL NO 32
Location Km 42 - Lt of centerline 100 meters
Drill - 12 x 108
Case - 10 x 108
Drill - 10 x 212
Drill - 8 x 120
Case - 6 x 340
Case - 8 x 182
Test - 276
Pump - 3000 + G P H
Total depth - 448
Pumped at 160
24 Hr Drawdown - 20
Water Salty
WELL NO 34
Location Km 35 - Lt of centerline 200 meters
Drill - 12 x 230
Install amp Extract Case - 10 x 230
Drill - 8 x 30
Case -6 x 260
Drill - 6 x 160
Case -5 x 324
Case - 8 x 20
Test - 276
Pump -1000 + G P H
Total depth - 420
Pumped at 150
24 Hr Drawdown - 100
Water Salty
C-10
WELL NO 36
Location Km 7 N E along old track from Km 63
Drill - 12 x 180
Case - 10 x 180
Drill - 10 x 231
Case - 8 x 211
Drill- 8x 254
Case - 6 x 245
Test -276
Pump -4000 + G P H
Total depth - 265
Pumped at 180
24 Hr Drawdown - 0
Water Good
C-11
I 3 I 1 I I I I B j APPENDDC D
SYNOPSIS 0 KEY CORRESPONDENCE
3 DURING CONSTRUCTION
I pound I I I 1 I I
On September 1 1973 the Contractor confirmed the
estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts
On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project
On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be
obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated
On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine
On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation
On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension
On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension
On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval
On October 15 1973 the Engineer returned the construction progress schedule for correction
On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim
D-I
On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor
On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project
On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25
On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter
On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents
On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract
On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised
On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading
On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule
On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request
On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period
D-2
On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report
On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material
On August 19 1974 the Contractor submitted an updated construction progress schedule for approval
On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases
On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor
On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor
On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project
On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course
On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country
On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course
On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions
On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule
On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress
D-3
On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract
On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana
On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor
On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion
On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations
On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases
On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season
On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees
On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections
On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project
On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course
On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project
On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract
D-4
October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request
On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor
On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620
On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project
On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y
completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense
On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted
On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project
On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim
On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic
On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor
On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976
D-5
On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time
On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares
On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material
On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500
On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor
On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula
On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana
OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected
On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road
On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road
Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10
On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued
On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced
On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091
On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091
Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued
D-6
I I IUUU U U UU I U
E PROJECT PHOTOGRAPHS
I IIIU U I
I Crushing Plants Surface Course
Pit 2A
Pug Mill Blending Surface Course
Pit 25A
II Surface Course
Pit 25A
UURYPTOERTOSE Pug Mil Blending
Road Reserve Bush Clearing
Km 242
U
Embankment Construction Km 287
IN
Road Construction Water Supply
Km 189
ROADWAY UNDER CONSTRUTION
II
E-2
Stockpiling Material Base Course
Special Embankment Construction Km 232
Watering of Embankment Km 257
ROADWAY UNDER CONSTRUCTION E-3
Culvert Assembly
Twin Culvert with Sand-Cement Pitching
Multiple Culverts with Sand-Cement Pitching
CULVERT INSTALLATIONS E- 4
AT Km 25
AT Km 194
Emergency Landing Strip Kra 2605
FINISHED ROADWAY E- 5
AT Km 286
AT Chobe By-Pass Junction Km 297
I Chobe By-Pass Road Near Ngoma Bridge
E-6FINISHED ROADWAY
VII FINANCIAL SUMMARY
As indicated in Section I-B of this report the funds available (from
AID) for the construction of this project were in the amount of U S $16600000
The disbursements of monies for the construction and construction supervision
through May 31 1978 are summarized in Table 3 along with the original esshy
timated amounts for comparison
TABLE 3
Disbursements Through Original Estimated
May 31 1978 Amounts
US $ RandPula US $ RandPula
Construction Costs (Grove International See Table 5) 882317486 310970881 897784200 316082500
Change Orders (From Table 1) 4276898 - 95829606
Supervision of Construction (TAMS) 129796299 - 135468100 -
TOTALS 1016390683 406800487 1033252300 316082500
From original contracts and supplements through May 31 1978
Table 4 presents a summary of final construction costs including
those by Contract Pay Items disbursed to the Contractor (Grove International)
The above listed costs do not include back charges on the loan which
charges are not available to the Engineer
The Contractor has submitted a series of claims requesting extensions
of time and reimbursement for claimed additional costs These claims are
currently under review by the Engineer A supplemental report will be issued
by the Engineer after the Contractors claims have been resolved and will
include any additional costs and time extensions awarded to the Contractor
Assuming an average rate of exchange of 1000 Pula or 1000 Rand
equal to 1350 U S Dollars and neglecting bank charges the approximate
loan balance as of May 31 1978 was U S $940000
-12shy
An average conversion rate of exchange has been used to estimate
the loan balance since the actual rate varied and actual draw-down figures
are not available to the Engineer
At the time of Project commencement the currency of Botswana was
the Rand In August 1976 the Botswana Government changed over from the
Rand to the Pula as the official currency During the course of construction
local currency disbursements have been made to the Contractor in both Rand
and Pula
-13shy
--- =1m =- M Il-- M=M m -
Sheet 1 of 4TABLE 4 - SCHEDULE OF FINAL CONTRACT QUANTITIES
Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount RandPula
No Description Measure Final Quantities US $ RandPula US $
101 Mobilization Lump Sum 10000 57077200 58360600 -0shy
201 Engineers Staff Housing 2-Bedroom House Each 1 3333 1300000 272100 1300000 272100
202 Engineers Staff Housing 3-Bedroom House Each 3 10000 1400000 339300 4200000 1017900
203 Engineers Staff Housing Technicians House Each 4 10000 650000 130100 2600000 520400
204 Engineers Staff Housing Jr Staff Housing Each 16 10000 112500 19600 1800000 313600
205 Moving amp Re-erection of Engineers Staff Housing Each move NOT APPLICABLE
206 Engineers Main Office Lump Sum 10000 1800000 306300
207 Engineers Main Laboratory Lump Sum 10000 2600000 407700
208 Moving amp Re-erection of Engineers Main Office Each Move NOT A P L I CA B L E and Main Laboratory
209 Engineers Forward OfficeLaboratory Each 2 10000 766300 1532600 -0shy
210 Additional Surveying Office Laboratory and Prime Cost 69809 1500000 1047146 -0-Communication Equipment
211 Contractors Expenses and Profit on Percent 69809 25 261787 -0-Prime Cost Item 210
212 Provide and Maintain Vehicles for ihe Engineers Staff Vmonth 304 Vmonth 24000 17100 7296000 5198400
301 Basic Survey and Setting Out km 370590 km 48500 13400 17973600 4965905
302 Clear Heavy Bush Hectare 514075 ha 23200 7500 11926540 3855563
303 Cleat Light Bush Hectare 70053 ha 15500 5000 10858215 3502650
304 Clear Grassy Hectare 1775 ha 12400 4000 2201000 710000
401 Prepare Sand Subgrade for Embankment m2 3335443 m 2 011 006 36689873 20012658
402 Prepare Clay Subgrade for Embankment m2 408450 m 2 023 011 9394350 4492950
501 Construct Standard Embankment i3 865895 m3 117 047 101309715 40697065
3502 Construct Special Embankment m3 254779 m 196 074 49936684 18853646
030 384035 129450503 Excavate Unsuitable Material m3 4315 m3 089
601 Base Course m3 538854 m3 310 120 167044740 64662480
602 Overhaul of Base Course Material m3km 46462 m3kr 028 010 1300936 464620
701 Remove Overburden from Surface Course Borrow Pits m3 260056 m3 060 016 15603360 4160896
702 Surface Course m3 457260 m3 545 210 249206700 96024600
703 Haul of Surface Course Material m3kmn 6572330 m3kr 0102 0034 67037766 22345922
TABLE 4 (Continued) Sheet 2 of 4
Item No Description
Unit of Measure
Total Revised Final Quantities
Contract Unit Price US $ RandPula
Final Revised Contract Amount US $ RandPula
801
802
803
Excavation and Backfill for Cuiverts up to 48 inches in diameter
Excavations for foundations of Culverts 48 inches and over
Backfilling culverts 48 inches and over
m3
m3
m3
558512 m3
94946 m3
322010 m3
480
270
490
330
140
360
2680858
256352
1577849
1843090
132923
1159236
804 Nestable Galvanized Corrugated Metal Pipe 18 inches in diameter 14 USSG
PIPE LM 249963 LM 4380 820 10948379 2049697
END SECTIONS Each 388 each 6660 225 2584080 87300
805 Nestable Galvanized Corrugated Metal Pipe 24 inches in diameter 14 USSG
PIPE LM 28104 LM 5560 1100 1562582 309144
Supply additional 24 inch diam Pipe 114035
END SECTIONS Each 34 each 10200 800 345800 27200
Supply additional End Sections 30600
806 Nestable Galvanized Corrugated Metal Pipe 36 inches in diameter 12 USSG
PIPE LM 19506 LM 10500 1600 2048130 312096
END SECTIONS Each 28 each 27600 2100 772800 58800
807 Nestable Galvanized Corrugated Metal Pipe 48 inches in diameter 12 USSG
PIPE LM 11522 each 13500 2200 1555470 253484
Supply additional 48 inch diam Pipe 10480
END SECTIONS Each 10 each 76200 4300 762000 43000
808 Nestable Galvanized Corrugated Metal Pipe 60 inches in diameter 10 USSG
PIPE LM 48768 LM 20400 2700 9948672 1316736
Supply additional 60 inch diam Pipe 47510
809
810
811
Excavate inlet and outlet drains mitre ditches and roadway ditches
Sand-cement Pitching
Clay slope Protection
m3
m3
m2
477781 m3
276769 m3
NA
110
2300
030
3000
100
525559
636569
-0-
143334
830307
-0shy
Supplied but not installed
mi -blN mN -m~ m ml m min nmlW arm~ nn- a a a a1 al a
TABLE 4 (Continued) Sheet 3 of 4
Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount No Description
812 Supply Nestable Galvanized Corrugated
Metal Pipe 18 inches in diameter 14 USSG
PIPE
END SECTIONS
901 Construct Maintenance Facility Complex
902 Water Pump
903 Contractors Expenses and Profit on Prime Cost Item 902
1001 Road Signs
1002 Guide Posts
1003 Kilometre Posts
Dayworks
TOTAL-SCHEDULE OF QUANTITIES
a
0) CO I CO 2
TAMS Staff Hotel Accommodation
Air Conditioners TCN Houses
CO 3
CO 4
NA (Progress Payment Permanent Material)
Additional TCN Housing
SUB-TOTAL
CO 5 POL Escalation Cost
CO 6 POL Escalation Cost
CO 7 POL Escalation Cost
SUB-TOTAL
LESS OVERPAYMENT
TOTAL POL ESCALATION COST
CO 8 Interim Allowance (Wage)
CO 9 Wage Escalation Cost
SUB-TOTAL
LESS OVERPAYMENT
TOTAL WAGE ESCALATION COST
Measure
LM
Each
Lump Sum
PC Sum
25
Each
Each
Each
As directed
Each
Final Quantities
238 LM
0 each
98
284 each
900 each
182 each
100
100
100
NA
6
100
100
100
100
100
US $
3400
6700
8520
As Billed
650000
As Shown
As Shown
As Shown
As Shown
As Shown
RandPula
900000
1000
1450
1500
130100
US $
809200
-0-
13014800
-0-
-0-
2419680
-0-
-0-
5999421
882317486
376898
3900000
4276898
RandPula
-0shy
-0shy
7308700
255223
63806
284000
1305000
273000
-0shy
310970881
842138
5307
780600
1628045
575601
1815344
77277517
79668462
1661539
78006923
297802
16022556
16320358
125720
16194638
TABLE 4 (Continued)
Item No Description
Unit of Measure
Total Revised Final Quantities
Contract Unit Price US $ RandPula
Sheet 4 of 4
Final Revised Contract Amount US $ RandPula
CO 10
CO 11
CO 12
Road Reserve cleared way Chobe River By-pass (included under items 302 303 and 304)
Importation Additional Sheeps foot roller (included under item 101)
Minor realignment of roadway at Nata
TOTAL CONSTRUCTION COST
100
100
100
886594384 406800487
ishy
I I I I I I I I
APPENDIX A
I CONSTRUCTION EQUIPMENT
I I I I U I I I I I
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT
I Descqription
2 Chevrolet Impala Sedan
5 jeep-Wagoner
7 jeep-Wagoner
1 Chevrolet Vega
23 Chevrolet Pickup
19 Mack Tractor (T675-8W)
2 Chevrolet Flat Bed
5 Mack-Platform Stake (T426-3500)
1 Mack-2000 Gal Fuel (T426-3500)
4 Mack Dump Truck 10 cy
2 Chevrolet Dump Truck 5 cy
1 Mack-Birmingham Tandum Lowboy Trailer
2 Mack-Gindy 25 Ton Tandum Semi Trailer
8 Heil- P3S 303 cy Dump Trailer
I 7 Fruehauf-TEO-F3-R 10000 Gal Tanker
5 Fruehauf-TEO-F2-R 6500 Gal Tanker
5 Fruehauf-Tandum Axle Dolly
2 Barko 14000 Telescopic Crane
6 Cobey 1062 Wagon Trailer
1 Cedarapids 443 Commander Crusher
1 Peerless Portable Base Stabilisation Plant
2 Atlantic International Water Treatment Plant
6 Caterpillar 631-B TractorS631-B Scraper
7 Caterpillar D8-H Dozer
2 4
Caterpillar D9- Dozer Caterpillar D6-C Dozer
2 Caterpillar 12-F Grader
5 Caterpillar 14-E Grader
U A-i
1
I
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (Cont)
Quantity
4
1
4
11Raygo
1
S1 2
ICaterpillar-200KW 3
1
1
1
1
1
3
2 2
2
I
1
2
2
I
1 2
8
1
j 8
1 4
9
1
Description
Caterpillar 966 Loader
Trojan 4000 Loader
Raygo 400A Compactor Vibrator
410A Compactor Vibrator
Vibro Plus Vibrating Sheepsfoot Roller
Bros 10000 Compactor
Bros 6000 Compactor
Generator Caterpillar - 125KW Generator
Little Reddevil Generator
Kholer 3KW Generator
Kholer 2KW Generator
Detroit Diesel Generator (2D-32)
Kholer Generator (5CKM61)
Hobart GR-3 03 Welders w trolley
Worthington 365 Compressor Worthington 160 Compressor
Kellypower Tamper
John Deere 2700 Disc Harrow10 Cut
ohn Deere 1630 Disc Harrow 7 Cut
Worthington WS-55 Rock Drill
Alemite Portable Service Station
Graco Lube Ranger
Worthington Wagon Drill
Layne Bowler Deep Well Pump
Layne Bowler Pump only
4 Centrifugal Pump
2 Centrifugal Pump
Columbian Steel Water Tanks 20000 US Gal
A-2
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (contd)
Quanti
1I Description
Caterpillar Parallel Shank Ripper
2 Fleco Blade Rake
4 Chainsaw
3 Gardner-Denver Compressor
5 Aerotron Radio Transmitters $1203
7 Aerotron Radio Receivers $2 10
16 SSB Radio Transceivers $1340
8 Auxilliary Radio Transceivers $1340
2 Cevy 4 x 4 Pickup Truck 8 Chevy 2 x 4 Pickup Truck
1 L B Smith Cone Crusher
2 Ford 4 x 4 (1164-14C Tractor)
2 Bros Sheepsfoot Roller
1 Hyster Towed Vibratory Compactor
During 1975 and 1976 the Contractor added the following listed equipment
1 Caterpillar No 14 Motor Grader
1 Caterpillar No 966 Loader
1 Trojan No 4000 Loader
1 Cone Crushing Plant 3 ft Standard Fine Bowl with 4 Deck Screens
4 Conveyor Units
A-3
I 1 I I I U I I
APPENDIX B
I I SOILS AND MATERIALS
I I 1 I I I I I 1
APPENDIX B
SOILS AND MATERIALS
(a) General
The road pavement is composed basically of two layers the surface
course and base course overlaying a compacted subgrade or embankment
The sources and volumes of the surface course and base course materials
are indicated in the Materials Utilization Diagrams included as Figures B-i
through B-4
(b) Subgrade
The subgrade soil consists primarily of aeolian fine sand except
for approximately 36 kilometers of the road for which the subgrade is a pan material consisting of clay In the pan areas special 1 Om thick
embankments were constructed with plasticity and fineness control of material
The subgrade and embankment soils were compacted to a minimum of 90
of modified AASHTO compaction The measured mean relative compaction
obtained immediately after compaction of the subgrade was 935 of the modified AASHTO maximum density
(c) Base Course
The majority of the base course materials are derived from aeolian deposits ie fine sand with a trace to some silty clay The
remaining base bourse approximately 15 of the total was obtained from pits having a large component of gravel The 15cm thick base
course is bank run or blended material for which the amounts of fines
and plasticity were controlled The base course materials were obtained from 123 base borrow pits and compacted to a minimum 95 of modified AASHTO density The measured mean relative compaction
directly after construction was 96 of the modified AASHTO maximum
density
(d) Surface Course
The 15cm thick surface course is well graded sandy gravel with
some silty clay fraction The materials for the road segment from
Kilometer 0+000 to Kilometer 173+000 are derived from calcrete deposits
while the materials for the remaining portion are derived from weathered
3-1
bedrock The surface course has controlled gradation plasticity and
durability to obtain sufficient strength to reduce ravelling to a minimum
particularly during the dry season and to resist the wear of traffic
Surface course materials have been obtained by screening crushing
and blending materials from 9 borrow areas and were compacted to a
minimum of 98 of modified AASUTO maximum dry density The comshy
posite properties for each borrow pit are indicated in the Average
Gradation Ourvesincluded as Figures B-5 through B-13 Directly
after construction of the surface course the measured mean relative
compaction was 100 of the modified AASHTO maximum density
B-2
N A TA K A ZUN GU LA RO0A D 70 033 90 CC
00 00 0 0 0+I 03- 30L K
0 I I
M 3 100 0002L [2
_
MATERIALS UTILIZATION DIAGRAM Fiure -I
NATA - KAZUNGULA ROAD
+--- 121
y T
MATERIALS UTILIZATION DIAGRAM Fgure R-Z
NAT A - KAZ UN GULA ROAD
07 2 230K300 220 220 232 252
I 3 3 2
MATERIALS UTILIZATION DIAGRAM Figure 2-3
itLT-m
CHOBE RIVER BY-PASS ROAD 02__ Q___ 0 60 40 - 0 50 0 i
-F-CEL
-Tl J-II II
MATERIALS UTILIZATION DIAGRAM Figure B-4
3 SIEVE ANALYSIS SMI~ia VIII
IY UN In~ VI STAISRS SIEVE NUMBfh SUE9 - usuLguNuus O-- aoIiUl- I1
11I a to to 0 i oIIIa lf I
II
SN Cu ye B
II N
o
i B _ ___~ N II 1 l s - Curi e At-
I 2 I a 6 4 2 i5 4 3 2 a -
GRAIN I IZE MILTERS
SILT AND CLAY SOILS GRAVEL SAND
I NUMBE1RSAMPLE DEPTH LL KIE IPTIONIELEV P1 ECIT
A Composit 38 19 CrusherAverage Runof 192 samples
B Composit 33 17 Surface Course Blend asAverage of 236 samples placed
MDD 1960 kgm Los Angeles Abrasion = 42 Average Blend Added 15=
REPUBLIC OF BOTSWANA TI PPETTS-ASSETT-NcCAIThY-STRATTOU MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY BOTSWANA-ZAMBIA GRAIN SIZE DISTRIBUTION BY DmArTE Q76HIGHWAY j PIT 2A DOi FIGURE B-5
E ANLYSISSIEVE NALYSIS NI
OPEING - In jS PhIMS-SEVE iNRh3EN son - MILLIMETER
V11 6plusmn SSIEVE
6 i S 0-4 0 10 miUS) 3055 3 001mesa a
9 I I I - -
Crye B
S bull
1TCrii INN20 1 e A- NI deg I FIK 46591 2 a045 4 2 1115 5 2 6
GRIISZ IN MILLIMETERS
COACE iE NtIUM FI SILT AD CLAY SOILSGRAVEL SAND
5r IBSAMPLE DEPTH ELEV LLP1
A Composite 28 10 Crusher Run Average of 229 samples
B Composite 28 11 Surface Course Blend as Placed Average of 58 samples
2050 kgm3 Averaoe Blend Added shy
TIPPETTS-ASETT-NCCARTIY-STATTONREPUBLIC OF BOTSWANA NEW YORK NY
MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS
BRAIN SIZE DISTRIBUTION BY NCZ jAATE9 876BOTSWANA-ZAMBIA
HIGHWAY PIT 14 amp 14A OWN FIGURE B-6
i
S ANALYSIS 01 ANALYSIS
SIEVE - n -IIII- SIZ-MII- - IN i
It a s 1
Ue a -- e B
- 1 -I-[_I - I I I
6l51 10 8 $514 1 O is 05I I 21 8GANSZNILMTR OA RE Filo 9OA-1i 1DI UM F log S ILT AND CLAY SO ILS
GRAVEL nSAND
E--l I UNEASMPLEDEPlTH ELEV LL P1 KWKIPTION
A Composite 36 19 Crusher Run
Average of 116 Samples
B Composite 36 15 Surface Course Blend Average of 138 samples
H GHWA E SA 18 SILT ANDURCLA-SIL
3kgm Los Angeles Abrasion 28
Av agau Pnd AAd = 907 ITI UETT$-ABBTT-NcentcentARTNY-STRATTON
NEW YORK NY
REPUBLIC OF BOTSWANA
MINISTRY OF WORKS amp COM24UNICATIONSIT NINEERS1
I I MGIELI7 I 1 8AIIGIWAE
I
4
SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU
V 1 Oe 001l
- -r--I-I -- I
S E- -IN S
KI zz7llfl$zIIIti z I
low560
20
2
IGRAIN SIZE IN MILLIMETERS
COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS
GRAVEL SAND
SAMP DEPTH ELEV L P1 0NBERIIPTI
A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples
B Composit( 28 13 Surface Course Blend as Placed
Average of 85 samples
Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA
REPUBLIC OF BOTSWANA TI EfTTS-AIETT-NCARTY-STRATTOi ITTqTPI yen O WOVQ A n rn WTraTTn~lz ENGINEERS NEW YOlK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8
-D IUR IB
II SIEVE ANALYIIS 1411 I LYIlMll
[urn $11min - I I ITUSE IVV I - mampINimums1 -l0 n 001
a1 i 4 is s 0 aL w I 2 0665S a a 4 i 0i
-7sl
96---
I RI IE IN M IEER
CfliEI FIN g o au SIT SILFIN M40 5C o432 14593 ry B6
ver 7 samples
NUMBE NERPI
Ay I GRAIN SIZE IN MILLIMETR
5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND
A Q A- Aii dd d~A
IMUBEIRIIIIPIi
3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables
B Composit 26 13 Surface Course BlendU as Placed
Average of 79 samples
AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =
REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9
SIEVE ANALYSIS IMmv na awLYoia
SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I
I- 01 001
e---__
Ir1 -NIP_]
20
OA
$05 9 2
E
I
86543
I
7tN
2 1 65
_OAlEED t
5 2
FN
I
GRAIN SIZE IN MILLIMETERS
1 111I
NU BE GRAVEL
COARSE
I
MEDIUM
I SAND
FSILT AND CLAY SOILS
SAMPLE4 DEP EEY 1 SCBI1PTIORI
A
B
Composite
Composite
38
26
17
13
Crusher Run Basaltic Aggregate
Average of 176 samples
Surface Course Blend -s Placed Average of 58 samples
Average MDD = 2135 kgm Los Angeles Abrasion = 38
Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY
WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971
3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10
SIEVE ANIALYSIS lNVINI1111 ANALYSIS
I EV OPE IN - INI8 TOSIIEENN1-MLII
I
I - - i ii 0
I GRI SIZEto N OILS 1
I ANDLI IS
G VELIZE I
IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL
-APL ESN
DEPTH ELEY LL PI DESCRIPTIONNUSMBE
3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples
B Composite 26 13 Surface Course Blend as Placed Average of 58 samples
Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34
Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY
BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11
___ I
SIEVE ANALYSIS W11 ANKEm SIS
SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS
01 001
sodego
i i
U Ae
6 559 2 a65 3 2 1 6532 S
II GRAIN SIZE INMILLIMETERS
=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL
GRAVEL SN
I SAMPE DEPTH ELEV LL P)S DESCRIPTION
A omposite 28 10 Crusher Run
SAverage of 72 samples
B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples
Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20
REPUBLICUINISTRY 0OF OF
BOTSWANA WORKS amp COMMUNIGTIONS
TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12
I
SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM
-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U
I _
I1li
Ia _ Cu ve
N IC A11
IQI II
1 IG S IIIMETE
I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND
SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION
A Composite 34 15 Crusher Run Average of 74 samples
B Composite 29 12 Surface Course Blend as Placed
Average of 42 samples
MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15
REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA
ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N
NEW sy cKA
YORK NYT E-2 5 1 7 7
HIGHWAY PIT 32A Mwe FIGURE B-13
I I I I I I I I
APPENDIX C
I WATER WELL LOCATIONS
I I I I I I I I I
APPENDIX C WATER WELL LOCATIONS
WELL NO 3
Location Km 171 Lt of centerline 200 meters
Drill - 6 x 392
Ream - 8 x 92
Case - 6 x 84
Test - 24 Hours - 276
Pump 6000 G P H
Total depth - 392
Pumped at 150
24 Hr Drawdown - 3
Water Good
WELL NO 4
Location Km 175 - Lt of centerline 100 meters
Drill - 6 x 380
Ream - 8 x 82
Case - 7 x 82
Test - 276
Pump 1800 G P H
Total depth - 380
Pumped at 200
Drawdown 24 Hr - 100
Water Good
WELL NO 5 (Govt No 2436
Location Km 178 - Lt of centerline 115 meters
Test -276
Pump - 1400 G P H
Total depth - 160
Pumped at 140
24 Hr Drawdown - 60
Water Good C-1
WELL NO 6
Location Km 183 - Lt of centerline 60 meters
Drill - 6 x 436
Ream - 8 x 86
Case - 7 x 86
Test - 276
Pump - 500 G P H
Total depth - 436
Pumped at 250
24 Hr Drawdown - 150
Water Good
WELL NO 7 - (Govt No 2435)
Location Km 189 - Rt of centerline 100 meters
Clean amp Test
Pump - 6000 G P H
Pumped at 140
24 Hr Drawdown - 10
Water Good
WELL NO 14
Location Km 252 - Lt of centerline 100 meters
Drill - 6 x 250
Ream - 8 x 53
Case - 6 x 53
Test - 276
Pump - 6000 G P H
Total depth - 250
Pumped at 150
24 Hr Drawdown - 6
Water Good
C-2
WELL AT KM 256 MAINTENANCE FACILITY NO 3
Location Km 256 - Lt of centerline 200 meters
Depth - 100 feet
Water Rest Level - 42 feet
Depth Pump Set - 70 feet
24 Hr Test - 1800 G P H
WELL NO 15
Location Km 245 - Rt of centerline 40 meters
Drill - 6 x 260
Ream - 8 x 54
Case - 54
Test -276
Pump - 1500 G P H
Total depth - 260
Pumped at 200
24 Hr Drawdown - 140
Water Good
WELL NO 16 Location Km 236 -Rt of centerline 30 meters
Drill - 6 x 250
Ream - 8 x 22
Case - 6 x 22
Test - 276
Pump -6000 G P H
Total depth - 288
Pumped at 150
24 Hr Drawdown - 10
Water Good
C-3
WELL NO 17
Location Km 224 - Rt of centerline 30 meters
Drill - 10 x 89
Case - 8 x 85
Drill- 8x 43
Drill - 6 x 38
Case -6 x 132
Test - 276
Pump -2000 G P H
Total Depth - 170
Pumped at 100
24 Hr Drawdown - 11
Water Good
WELL NO 18
Location Km 217 - Lt of centerline 200 meters
Drill -i0 x 70
Case - 7 x 70
Drill - 7 x 52
Drill - 6 x 88
Case - 6 x 122
Test - 276
Pump 2400 G P H
Total depth - 210
Pumped at 200
24 Hr Drawdown - 140
Water Good
C-4
WELL NO 19
Location Km 213 - Lt of centerline 100 meters
Drill - 10 x 44
Case - 8 x 40
Drill - 8 x 76
Drill 6 x 130
Case - 6 x 120
Test - 276
Pump - 6000 G P H
Total depth - 210
Pumped at 60
24 Hr Drawdown - 10
Water Good
WELL NO 20
Location Km 143 - Rt of centerline 100 meters
Drill - 10 x 240
Case - 7 x 220
Drill -6 x 378
Case - 6 x 240
Case - 5 x 240
Test - 276
Pump -1500 G P H
Total depth - 618
Pumped at 460
24 Hr Drawdown - 105
Water slightly salty to taste but drinkable
C-5
WELL NO 23
Location Km 139 - Lt of centerline 100 meters
Drill - 12 x 290
Place amp Extract Case - 10 x 290
Drill - 8 x 30
Drill - 6 x 40
Case - 8 x 290
Case - 6 x 320
Test - 276
Pump - 1200 G P H
Total depth - 360
Pumped at 330
24 Hr Drawdown - 120
Water salty
WELL NO 24
Location Km 135 - Lt of centerline 500 meters
Drill - 12 x 270
Drill - 10 x 10
Case - 10 x 270
Drill -8 x 30
Case - 8 x 290
Case -6 x 310
Case - 5 x 320
Test -276
Pump -4000 +G P H
Total depth - 320
Pumped at 270
24 Hr Drawdown - 2
Water Salty
C-6
I
5
WELL KM 205 MAINTENANCE FACILITY NO 2
Location Km 105 - Lt of centerline 40 meters
Depth - 302 feet
~ Water Rest Level - 82 feet
Depth Pump Set - 150 feet
48 Hr Test - 3000 + G P H
WELL NO 26
Location Km 82 - Lt of centerline 100 meters
Drill - 12 x 145
5 -8 x145
Drill - 8 x 23
-Case
I Drill - 7 x 10
Case - 7 x 168
I Case - 6 x178
Test - 276
Pump - 1200 G P H
Total depth - 306
I Pumped at 140
24 Hr Drawdown - 35
I Water Good
C
I 0-7
WELL NO 27
Location Km 77 - Lt of centerline 100 meters
Drill - 12 x 174
Install amp Extract Case - 10 x 174
Case - 8 x 174
Drill - 9 x 68
Drill - 8 x 64
Case - 7 x 242
Case - 6 x 306
Test - 276
Pump - 4000 + G P H
Total Depth - 306
Pumpe at 240
24 Hr Drawdown - 0
Water Good
WELL NO 28- (Govt No 2465)
Location Km 63 - Rt of centerline 100 meters
Clean amp Extract Case - 300
Ream - 10 x 98
Ream - 8x 27
Ream - 6 x 12
Case - 8 x 98
Case - 6 x 125
Test - 276
Pump - 1000 + G P H
Total depth - 137
Pumped at 130
24 Hr Drawdown - 33
Water Good
C-8
WELL NO 30
Location Km 47 - Rt of centerline 400 meters
Drill - 12 x 132
Case - 10 x 89
Install amp Extract Case - 12 x 43
Drill - 10 x 117
Case - 7 x 242
Drill - 6 x 183
Install amp Extract Case - 6 x 408
Test - 276
Pump - 1000 G P H
Total depth - 408
Pumped at 160
24 Hr Drawdown - 77
Water Salty
WELL NO 31
- Lt of centerline 200 metersLocation Km 44
Drill - 12 x 110
Case - 10 x 100
Drill - 10 x 142
Case 8 x 142
Drill - 8 x 250
Case 7 x 392
Drill - 6 x 78
Test - 276
Pump - 3000 G P H
Total depth - 502
Pumped at 160
24 Hr Drawdown - 44
Water Salty
C-9
WELL NO 32
Location Km 42 - Lt of centerline 100 meters
Drill - 12 x 108
Case - 10 x 108
Drill - 10 x 212
Drill - 8 x 120
Case - 6 x 340
Case - 8 x 182
Test - 276
Pump - 3000 + G P H
Total depth - 448
Pumped at 160
24 Hr Drawdown - 20
Water Salty
WELL NO 34
Location Km 35 - Lt of centerline 200 meters
Drill - 12 x 230
Install amp Extract Case - 10 x 230
Drill - 8 x 30
Case -6 x 260
Drill - 6 x 160
Case -5 x 324
Case - 8 x 20
Test - 276
Pump -1000 + G P H
Total depth - 420
Pumped at 150
24 Hr Drawdown - 100
Water Salty
C-10
WELL NO 36
Location Km 7 N E along old track from Km 63
Drill - 12 x 180
Case - 10 x 180
Drill - 10 x 231
Case - 8 x 211
Drill- 8x 254
Case - 6 x 245
Test -276
Pump -4000 + G P H
Total depth - 265
Pumped at 180
24 Hr Drawdown - 0
Water Good
C-11
I 3 I 1 I I I I B j APPENDDC D
SYNOPSIS 0 KEY CORRESPONDENCE
3 DURING CONSTRUCTION
I pound I I I 1 I I
On September 1 1973 the Contractor confirmed the
estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts
On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project
On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be
obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated
On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine
On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation
On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension
On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension
On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval
On October 15 1973 the Engineer returned the construction progress schedule for correction
On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim
D-I
On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor
On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project
On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25
On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter
On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents
On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract
On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised
On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading
On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule
On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request
On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period
D-2
On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report
On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material
On August 19 1974 the Contractor submitted an updated construction progress schedule for approval
On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases
On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor
On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor
On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project
On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course
On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country
On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course
On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions
On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule
On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress
D-3
On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract
On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana
On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor
On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion
On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations
On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases
On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season
On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees
On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections
On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project
On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course
On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project
On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract
D-4
October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request
On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor
On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620
On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project
On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y
completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense
On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted
On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project
On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim
On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic
On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor
On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976
D-5
On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time
On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares
On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material
On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500
On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor
On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula
On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana
OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected
On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road
On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road
Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10
On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued
On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced
On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091
On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091
Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued
D-6
I I IUUU U U UU I U
E PROJECT PHOTOGRAPHS
I IIIU U I
I Crushing Plants Surface Course
Pit 2A
Pug Mill Blending Surface Course
Pit 25A
II Surface Course
Pit 25A
UURYPTOERTOSE Pug Mil Blending
Road Reserve Bush Clearing
Km 242
U
Embankment Construction Km 287
IN
Road Construction Water Supply
Km 189
ROADWAY UNDER CONSTRUTION
II
E-2
Stockpiling Material Base Course
Special Embankment Construction Km 232
Watering of Embankment Km 257
ROADWAY UNDER CONSTRUCTION E-3
Culvert Assembly
Twin Culvert with Sand-Cement Pitching
Multiple Culverts with Sand-Cement Pitching
CULVERT INSTALLATIONS E- 4
AT Km 25
AT Km 194
Emergency Landing Strip Kra 2605
FINISHED ROADWAY E- 5
AT Km 286
AT Chobe By-Pass Junction Km 297
I Chobe By-Pass Road Near Ngoma Bridge
E-6FINISHED ROADWAY
An average conversion rate of exchange has been used to estimate
the loan balance since the actual rate varied and actual draw-down figures
are not available to the Engineer
At the time of Project commencement the currency of Botswana was
the Rand In August 1976 the Botswana Government changed over from the
Rand to the Pula as the official currency During the course of construction
local currency disbursements have been made to the Contractor in both Rand
and Pula
-13shy
--- =1m =- M Il-- M=M m -
Sheet 1 of 4TABLE 4 - SCHEDULE OF FINAL CONTRACT QUANTITIES
Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount RandPula
No Description Measure Final Quantities US $ RandPula US $
101 Mobilization Lump Sum 10000 57077200 58360600 -0shy
201 Engineers Staff Housing 2-Bedroom House Each 1 3333 1300000 272100 1300000 272100
202 Engineers Staff Housing 3-Bedroom House Each 3 10000 1400000 339300 4200000 1017900
203 Engineers Staff Housing Technicians House Each 4 10000 650000 130100 2600000 520400
204 Engineers Staff Housing Jr Staff Housing Each 16 10000 112500 19600 1800000 313600
205 Moving amp Re-erection of Engineers Staff Housing Each move NOT APPLICABLE
206 Engineers Main Office Lump Sum 10000 1800000 306300
207 Engineers Main Laboratory Lump Sum 10000 2600000 407700
208 Moving amp Re-erection of Engineers Main Office Each Move NOT A P L I CA B L E and Main Laboratory
209 Engineers Forward OfficeLaboratory Each 2 10000 766300 1532600 -0shy
210 Additional Surveying Office Laboratory and Prime Cost 69809 1500000 1047146 -0-Communication Equipment
211 Contractors Expenses and Profit on Percent 69809 25 261787 -0-Prime Cost Item 210
212 Provide and Maintain Vehicles for ihe Engineers Staff Vmonth 304 Vmonth 24000 17100 7296000 5198400
301 Basic Survey and Setting Out km 370590 km 48500 13400 17973600 4965905
302 Clear Heavy Bush Hectare 514075 ha 23200 7500 11926540 3855563
303 Cleat Light Bush Hectare 70053 ha 15500 5000 10858215 3502650
304 Clear Grassy Hectare 1775 ha 12400 4000 2201000 710000
401 Prepare Sand Subgrade for Embankment m2 3335443 m 2 011 006 36689873 20012658
402 Prepare Clay Subgrade for Embankment m2 408450 m 2 023 011 9394350 4492950
501 Construct Standard Embankment i3 865895 m3 117 047 101309715 40697065
3502 Construct Special Embankment m3 254779 m 196 074 49936684 18853646
030 384035 129450503 Excavate Unsuitable Material m3 4315 m3 089
601 Base Course m3 538854 m3 310 120 167044740 64662480
602 Overhaul of Base Course Material m3km 46462 m3kr 028 010 1300936 464620
701 Remove Overburden from Surface Course Borrow Pits m3 260056 m3 060 016 15603360 4160896
702 Surface Course m3 457260 m3 545 210 249206700 96024600
703 Haul of Surface Course Material m3kmn 6572330 m3kr 0102 0034 67037766 22345922
TABLE 4 (Continued) Sheet 2 of 4
Item No Description
Unit of Measure
Total Revised Final Quantities
Contract Unit Price US $ RandPula
Final Revised Contract Amount US $ RandPula
801
802
803
Excavation and Backfill for Cuiverts up to 48 inches in diameter
Excavations for foundations of Culverts 48 inches and over
Backfilling culverts 48 inches and over
m3
m3
m3
558512 m3
94946 m3
322010 m3
480
270
490
330
140
360
2680858
256352
1577849
1843090
132923
1159236
804 Nestable Galvanized Corrugated Metal Pipe 18 inches in diameter 14 USSG
PIPE LM 249963 LM 4380 820 10948379 2049697
END SECTIONS Each 388 each 6660 225 2584080 87300
805 Nestable Galvanized Corrugated Metal Pipe 24 inches in diameter 14 USSG
PIPE LM 28104 LM 5560 1100 1562582 309144
Supply additional 24 inch diam Pipe 114035
END SECTIONS Each 34 each 10200 800 345800 27200
Supply additional End Sections 30600
806 Nestable Galvanized Corrugated Metal Pipe 36 inches in diameter 12 USSG
PIPE LM 19506 LM 10500 1600 2048130 312096
END SECTIONS Each 28 each 27600 2100 772800 58800
807 Nestable Galvanized Corrugated Metal Pipe 48 inches in diameter 12 USSG
PIPE LM 11522 each 13500 2200 1555470 253484
Supply additional 48 inch diam Pipe 10480
END SECTIONS Each 10 each 76200 4300 762000 43000
808 Nestable Galvanized Corrugated Metal Pipe 60 inches in diameter 10 USSG
PIPE LM 48768 LM 20400 2700 9948672 1316736
Supply additional 60 inch diam Pipe 47510
809
810
811
Excavate inlet and outlet drains mitre ditches and roadway ditches
Sand-cement Pitching
Clay slope Protection
m3
m3
m2
477781 m3
276769 m3
NA
110
2300
030
3000
100
525559
636569
-0-
143334
830307
-0shy
Supplied but not installed
mi -blN mN -m~ m ml m min nmlW arm~ nn- a a a a1 al a
TABLE 4 (Continued) Sheet 3 of 4
Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount No Description
812 Supply Nestable Galvanized Corrugated
Metal Pipe 18 inches in diameter 14 USSG
PIPE
END SECTIONS
901 Construct Maintenance Facility Complex
902 Water Pump
903 Contractors Expenses and Profit on Prime Cost Item 902
1001 Road Signs
1002 Guide Posts
1003 Kilometre Posts
Dayworks
TOTAL-SCHEDULE OF QUANTITIES
a
0) CO I CO 2
TAMS Staff Hotel Accommodation
Air Conditioners TCN Houses
CO 3
CO 4
NA (Progress Payment Permanent Material)
Additional TCN Housing
SUB-TOTAL
CO 5 POL Escalation Cost
CO 6 POL Escalation Cost
CO 7 POL Escalation Cost
SUB-TOTAL
LESS OVERPAYMENT
TOTAL POL ESCALATION COST
CO 8 Interim Allowance (Wage)
CO 9 Wage Escalation Cost
SUB-TOTAL
LESS OVERPAYMENT
TOTAL WAGE ESCALATION COST
Measure
LM
Each
Lump Sum
PC Sum
25
Each
Each
Each
As directed
Each
Final Quantities
238 LM
0 each
98
284 each
900 each
182 each
100
100
100
NA
6
100
100
100
100
100
US $
3400
6700
8520
As Billed
650000
As Shown
As Shown
As Shown
As Shown
As Shown
RandPula
900000
1000
1450
1500
130100
US $
809200
-0-
13014800
-0-
-0-
2419680
-0-
-0-
5999421
882317486
376898
3900000
4276898
RandPula
-0shy
-0shy
7308700
255223
63806
284000
1305000
273000
-0shy
310970881
842138
5307
780600
1628045
575601
1815344
77277517
79668462
1661539
78006923
297802
16022556
16320358
125720
16194638
TABLE 4 (Continued)
Item No Description
Unit of Measure
Total Revised Final Quantities
Contract Unit Price US $ RandPula
Sheet 4 of 4
Final Revised Contract Amount US $ RandPula
CO 10
CO 11
CO 12
Road Reserve cleared way Chobe River By-pass (included under items 302 303 and 304)
Importation Additional Sheeps foot roller (included under item 101)
Minor realignment of roadway at Nata
TOTAL CONSTRUCTION COST
100
100
100
886594384 406800487
ishy
I I I I I I I I
APPENDIX A
I CONSTRUCTION EQUIPMENT
I I I I U I I I I I
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT
I Descqription
2 Chevrolet Impala Sedan
5 jeep-Wagoner
7 jeep-Wagoner
1 Chevrolet Vega
23 Chevrolet Pickup
19 Mack Tractor (T675-8W)
2 Chevrolet Flat Bed
5 Mack-Platform Stake (T426-3500)
1 Mack-2000 Gal Fuel (T426-3500)
4 Mack Dump Truck 10 cy
2 Chevrolet Dump Truck 5 cy
1 Mack-Birmingham Tandum Lowboy Trailer
2 Mack-Gindy 25 Ton Tandum Semi Trailer
8 Heil- P3S 303 cy Dump Trailer
I 7 Fruehauf-TEO-F3-R 10000 Gal Tanker
5 Fruehauf-TEO-F2-R 6500 Gal Tanker
5 Fruehauf-Tandum Axle Dolly
2 Barko 14000 Telescopic Crane
6 Cobey 1062 Wagon Trailer
1 Cedarapids 443 Commander Crusher
1 Peerless Portable Base Stabilisation Plant
2 Atlantic International Water Treatment Plant
6 Caterpillar 631-B TractorS631-B Scraper
7 Caterpillar D8-H Dozer
2 4
Caterpillar D9- Dozer Caterpillar D6-C Dozer
2 Caterpillar 12-F Grader
5 Caterpillar 14-E Grader
U A-i
1
I
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (Cont)
Quantity
4
1
4
11Raygo
1
S1 2
ICaterpillar-200KW 3
1
1
1
1
1
3
2 2
2
I
1
2
2
I
1 2
8
1
j 8
1 4
9
1
Description
Caterpillar 966 Loader
Trojan 4000 Loader
Raygo 400A Compactor Vibrator
410A Compactor Vibrator
Vibro Plus Vibrating Sheepsfoot Roller
Bros 10000 Compactor
Bros 6000 Compactor
Generator Caterpillar - 125KW Generator
Little Reddevil Generator
Kholer 3KW Generator
Kholer 2KW Generator
Detroit Diesel Generator (2D-32)
Kholer Generator (5CKM61)
Hobart GR-3 03 Welders w trolley
Worthington 365 Compressor Worthington 160 Compressor
Kellypower Tamper
John Deere 2700 Disc Harrow10 Cut
ohn Deere 1630 Disc Harrow 7 Cut
Worthington WS-55 Rock Drill
Alemite Portable Service Station
Graco Lube Ranger
Worthington Wagon Drill
Layne Bowler Deep Well Pump
Layne Bowler Pump only
4 Centrifugal Pump
2 Centrifugal Pump
Columbian Steel Water Tanks 20000 US Gal
A-2
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (contd)
Quanti
1I Description
Caterpillar Parallel Shank Ripper
2 Fleco Blade Rake
4 Chainsaw
3 Gardner-Denver Compressor
5 Aerotron Radio Transmitters $1203
7 Aerotron Radio Receivers $2 10
16 SSB Radio Transceivers $1340
8 Auxilliary Radio Transceivers $1340
2 Cevy 4 x 4 Pickup Truck 8 Chevy 2 x 4 Pickup Truck
1 L B Smith Cone Crusher
2 Ford 4 x 4 (1164-14C Tractor)
2 Bros Sheepsfoot Roller
1 Hyster Towed Vibratory Compactor
During 1975 and 1976 the Contractor added the following listed equipment
1 Caterpillar No 14 Motor Grader
1 Caterpillar No 966 Loader
1 Trojan No 4000 Loader
1 Cone Crushing Plant 3 ft Standard Fine Bowl with 4 Deck Screens
4 Conveyor Units
A-3
I 1 I I I U I I
APPENDIX B
I I SOILS AND MATERIALS
I I 1 I I I I I 1
APPENDIX B
SOILS AND MATERIALS
(a) General
The road pavement is composed basically of two layers the surface
course and base course overlaying a compacted subgrade or embankment
The sources and volumes of the surface course and base course materials
are indicated in the Materials Utilization Diagrams included as Figures B-i
through B-4
(b) Subgrade
The subgrade soil consists primarily of aeolian fine sand except
for approximately 36 kilometers of the road for which the subgrade is a pan material consisting of clay In the pan areas special 1 Om thick
embankments were constructed with plasticity and fineness control of material
The subgrade and embankment soils were compacted to a minimum of 90
of modified AASHTO compaction The measured mean relative compaction
obtained immediately after compaction of the subgrade was 935 of the modified AASHTO maximum density
(c) Base Course
The majority of the base course materials are derived from aeolian deposits ie fine sand with a trace to some silty clay The
remaining base bourse approximately 15 of the total was obtained from pits having a large component of gravel The 15cm thick base
course is bank run or blended material for which the amounts of fines
and plasticity were controlled The base course materials were obtained from 123 base borrow pits and compacted to a minimum 95 of modified AASHTO density The measured mean relative compaction
directly after construction was 96 of the modified AASHTO maximum
density
(d) Surface Course
The 15cm thick surface course is well graded sandy gravel with
some silty clay fraction The materials for the road segment from
Kilometer 0+000 to Kilometer 173+000 are derived from calcrete deposits
while the materials for the remaining portion are derived from weathered
3-1
bedrock The surface course has controlled gradation plasticity and
durability to obtain sufficient strength to reduce ravelling to a minimum
particularly during the dry season and to resist the wear of traffic
Surface course materials have been obtained by screening crushing
and blending materials from 9 borrow areas and were compacted to a
minimum of 98 of modified AASUTO maximum dry density The comshy
posite properties for each borrow pit are indicated in the Average
Gradation Ourvesincluded as Figures B-5 through B-13 Directly
after construction of the surface course the measured mean relative
compaction was 100 of the modified AASHTO maximum density
B-2
N A TA K A ZUN GU LA RO0A D 70 033 90 CC
00 00 0 0 0+I 03- 30L K
0 I I
M 3 100 0002L [2
_
MATERIALS UTILIZATION DIAGRAM Fiure -I
NATA - KAZUNGULA ROAD
+--- 121
y T
MATERIALS UTILIZATION DIAGRAM Fgure R-Z
NAT A - KAZ UN GULA ROAD
07 2 230K300 220 220 232 252
I 3 3 2
MATERIALS UTILIZATION DIAGRAM Figure 2-3
itLT-m
CHOBE RIVER BY-PASS ROAD 02__ Q___ 0 60 40 - 0 50 0 i
-F-CEL
-Tl J-II II
MATERIALS UTILIZATION DIAGRAM Figure B-4
3 SIEVE ANALYSIS SMI~ia VIII
IY UN In~ VI STAISRS SIEVE NUMBfh SUE9 - usuLguNuus O-- aoIiUl- I1
11I a to to 0 i oIIIa lf I
II
SN Cu ye B
II N
o
i B _ ___~ N II 1 l s - Curi e At-
I 2 I a 6 4 2 i5 4 3 2 a -
GRAIN I IZE MILTERS
SILT AND CLAY SOILS GRAVEL SAND
I NUMBE1RSAMPLE DEPTH LL KIE IPTIONIELEV P1 ECIT
A Composit 38 19 CrusherAverage Runof 192 samples
B Composit 33 17 Surface Course Blend asAverage of 236 samples placed
MDD 1960 kgm Los Angeles Abrasion = 42 Average Blend Added 15=
REPUBLIC OF BOTSWANA TI PPETTS-ASSETT-NcCAIThY-STRATTOU MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY BOTSWANA-ZAMBIA GRAIN SIZE DISTRIBUTION BY DmArTE Q76HIGHWAY j PIT 2A DOi FIGURE B-5
E ANLYSISSIEVE NALYSIS NI
OPEING - In jS PhIMS-SEVE iNRh3EN son - MILLIMETER
V11 6plusmn SSIEVE
6 i S 0-4 0 10 miUS) 3055 3 001mesa a
9 I I I - -
Crye B
S bull
1TCrii INN20 1 e A- NI deg I FIK 46591 2 a045 4 2 1115 5 2 6
GRIISZ IN MILLIMETERS
COACE iE NtIUM FI SILT AD CLAY SOILSGRAVEL SAND
5r IBSAMPLE DEPTH ELEV LLP1
A Composite 28 10 Crusher Run Average of 229 samples
B Composite 28 11 Surface Course Blend as Placed Average of 58 samples
2050 kgm3 Averaoe Blend Added shy
TIPPETTS-ASETT-NCCARTIY-STATTONREPUBLIC OF BOTSWANA NEW YORK NY
MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS
BRAIN SIZE DISTRIBUTION BY NCZ jAATE9 876BOTSWANA-ZAMBIA
HIGHWAY PIT 14 amp 14A OWN FIGURE B-6
i
S ANALYSIS 01 ANALYSIS
SIEVE - n -IIII- SIZ-MII- - IN i
It a s 1
Ue a -- e B
- 1 -I-[_I - I I I
6l51 10 8 $514 1 O is 05I I 21 8GANSZNILMTR OA RE Filo 9OA-1i 1DI UM F log S ILT AND CLAY SO ILS
GRAVEL nSAND
E--l I UNEASMPLEDEPlTH ELEV LL P1 KWKIPTION
A Composite 36 19 Crusher Run
Average of 116 Samples
B Composite 36 15 Surface Course Blend Average of 138 samples
H GHWA E SA 18 SILT ANDURCLA-SIL
3kgm Los Angeles Abrasion 28
Av agau Pnd AAd = 907 ITI UETT$-ABBTT-NcentcentARTNY-STRATTON
NEW YORK NY
REPUBLIC OF BOTSWANA
MINISTRY OF WORKS amp COM24UNICATIONSIT NINEERS1
I I MGIELI7 I 1 8AIIGIWAE
I
4
SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU
V 1 Oe 001l
- -r--I-I -- I
S E- -IN S
KI zz7llfl$zIIIti z I
low560
20
2
IGRAIN SIZE IN MILLIMETERS
COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS
GRAVEL SAND
SAMP DEPTH ELEV L P1 0NBERIIPTI
A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples
B Composit( 28 13 Surface Course Blend as Placed
Average of 85 samples
Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA
REPUBLIC OF BOTSWANA TI EfTTS-AIETT-NCARTY-STRATTOi ITTqTPI yen O WOVQ A n rn WTraTTn~lz ENGINEERS NEW YOlK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8
-D IUR IB
II SIEVE ANALYIIS 1411 I LYIlMll
[urn $11min - I I ITUSE IVV I - mampINimums1 -l0 n 001
a1 i 4 is s 0 aL w I 2 0665S a a 4 i 0i
-7sl
96---
I RI IE IN M IEER
CfliEI FIN g o au SIT SILFIN M40 5C o432 14593 ry B6
ver 7 samples
NUMBE NERPI
Ay I GRAIN SIZE IN MILLIMETR
5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND
A Q A- Aii dd d~A
IMUBEIRIIIIPIi
3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables
B Composit 26 13 Surface Course BlendU as Placed
Average of 79 samples
AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =
REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9
SIEVE ANALYSIS IMmv na awLYoia
SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I
I- 01 001
e---__
Ir1 -NIP_]
20
OA
$05 9 2
E
I
86543
I
7tN
2 1 65
_OAlEED t
5 2
FN
I
GRAIN SIZE IN MILLIMETERS
1 111I
NU BE GRAVEL
COARSE
I
MEDIUM
I SAND
FSILT AND CLAY SOILS
SAMPLE4 DEP EEY 1 SCBI1PTIORI
A
B
Composite
Composite
38
26
17
13
Crusher Run Basaltic Aggregate
Average of 176 samples
Surface Course Blend -s Placed Average of 58 samples
Average MDD = 2135 kgm Los Angeles Abrasion = 38
Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY
WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971
3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10
SIEVE ANIALYSIS lNVINI1111 ANALYSIS
I EV OPE IN - INI8 TOSIIEENN1-MLII
I
I - - i ii 0
I GRI SIZEto N OILS 1
I ANDLI IS
G VELIZE I
IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL
-APL ESN
DEPTH ELEY LL PI DESCRIPTIONNUSMBE
3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples
B Composite 26 13 Surface Course Blend as Placed Average of 58 samples
Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34
Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY
BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11
___ I
SIEVE ANALYSIS W11 ANKEm SIS
SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS
01 001
sodego
i i
U Ae
6 559 2 a65 3 2 1 6532 S
II GRAIN SIZE INMILLIMETERS
=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL
GRAVEL SN
I SAMPE DEPTH ELEV LL P)S DESCRIPTION
A omposite 28 10 Crusher Run
SAverage of 72 samples
B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples
Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20
REPUBLICUINISTRY 0OF OF
BOTSWANA WORKS amp COMMUNIGTIONS
TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12
I
SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM
-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U
I _
I1li
Ia _ Cu ve
N IC A11
IQI II
1 IG S IIIMETE
I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND
SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION
A Composite 34 15 Crusher Run Average of 74 samples
B Composite 29 12 Surface Course Blend as Placed
Average of 42 samples
MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15
REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA
ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N
NEW sy cKA
YORK NYT E-2 5 1 7 7
HIGHWAY PIT 32A Mwe FIGURE B-13
I I I I I I I I
APPENDIX C
I WATER WELL LOCATIONS
I I I I I I I I I
APPENDIX C WATER WELL LOCATIONS
WELL NO 3
Location Km 171 Lt of centerline 200 meters
Drill - 6 x 392
Ream - 8 x 92
Case - 6 x 84
Test - 24 Hours - 276
Pump 6000 G P H
Total depth - 392
Pumped at 150
24 Hr Drawdown - 3
Water Good
WELL NO 4
Location Km 175 - Lt of centerline 100 meters
Drill - 6 x 380
Ream - 8 x 82
Case - 7 x 82
Test - 276
Pump 1800 G P H
Total depth - 380
Pumped at 200
Drawdown 24 Hr - 100
Water Good
WELL NO 5 (Govt No 2436
Location Km 178 - Lt of centerline 115 meters
Test -276
Pump - 1400 G P H
Total depth - 160
Pumped at 140
24 Hr Drawdown - 60
Water Good C-1
WELL NO 6
Location Km 183 - Lt of centerline 60 meters
Drill - 6 x 436
Ream - 8 x 86
Case - 7 x 86
Test - 276
Pump - 500 G P H
Total depth - 436
Pumped at 250
24 Hr Drawdown - 150
Water Good
WELL NO 7 - (Govt No 2435)
Location Km 189 - Rt of centerline 100 meters
Clean amp Test
Pump - 6000 G P H
Pumped at 140
24 Hr Drawdown - 10
Water Good
WELL NO 14
Location Km 252 - Lt of centerline 100 meters
Drill - 6 x 250
Ream - 8 x 53
Case - 6 x 53
Test - 276
Pump - 6000 G P H
Total depth - 250
Pumped at 150
24 Hr Drawdown - 6
Water Good
C-2
WELL AT KM 256 MAINTENANCE FACILITY NO 3
Location Km 256 - Lt of centerline 200 meters
Depth - 100 feet
Water Rest Level - 42 feet
Depth Pump Set - 70 feet
24 Hr Test - 1800 G P H
WELL NO 15
Location Km 245 - Rt of centerline 40 meters
Drill - 6 x 260
Ream - 8 x 54
Case - 54
Test -276
Pump - 1500 G P H
Total depth - 260
Pumped at 200
24 Hr Drawdown - 140
Water Good
WELL NO 16 Location Km 236 -Rt of centerline 30 meters
Drill - 6 x 250
Ream - 8 x 22
Case - 6 x 22
Test - 276
Pump -6000 G P H
Total depth - 288
Pumped at 150
24 Hr Drawdown - 10
Water Good
C-3
WELL NO 17
Location Km 224 - Rt of centerline 30 meters
Drill - 10 x 89
Case - 8 x 85
Drill- 8x 43
Drill - 6 x 38
Case -6 x 132
Test - 276
Pump -2000 G P H
Total Depth - 170
Pumped at 100
24 Hr Drawdown - 11
Water Good
WELL NO 18
Location Km 217 - Lt of centerline 200 meters
Drill -i0 x 70
Case - 7 x 70
Drill - 7 x 52
Drill - 6 x 88
Case - 6 x 122
Test - 276
Pump 2400 G P H
Total depth - 210
Pumped at 200
24 Hr Drawdown - 140
Water Good
C-4
WELL NO 19
Location Km 213 - Lt of centerline 100 meters
Drill - 10 x 44
Case - 8 x 40
Drill - 8 x 76
Drill 6 x 130
Case - 6 x 120
Test - 276
Pump - 6000 G P H
Total depth - 210
Pumped at 60
24 Hr Drawdown - 10
Water Good
WELL NO 20
Location Km 143 - Rt of centerline 100 meters
Drill - 10 x 240
Case - 7 x 220
Drill -6 x 378
Case - 6 x 240
Case - 5 x 240
Test - 276
Pump -1500 G P H
Total depth - 618
Pumped at 460
24 Hr Drawdown - 105
Water slightly salty to taste but drinkable
C-5
WELL NO 23
Location Km 139 - Lt of centerline 100 meters
Drill - 12 x 290
Place amp Extract Case - 10 x 290
Drill - 8 x 30
Drill - 6 x 40
Case - 8 x 290
Case - 6 x 320
Test - 276
Pump - 1200 G P H
Total depth - 360
Pumped at 330
24 Hr Drawdown - 120
Water salty
WELL NO 24
Location Km 135 - Lt of centerline 500 meters
Drill - 12 x 270
Drill - 10 x 10
Case - 10 x 270
Drill -8 x 30
Case - 8 x 290
Case -6 x 310
Case - 5 x 320
Test -276
Pump -4000 +G P H
Total depth - 320
Pumped at 270
24 Hr Drawdown - 2
Water Salty
C-6
I
5
WELL KM 205 MAINTENANCE FACILITY NO 2
Location Km 105 - Lt of centerline 40 meters
Depth - 302 feet
~ Water Rest Level - 82 feet
Depth Pump Set - 150 feet
48 Hr Test - 3000 + G P H
WELL NO 26
Location Km 82 - Lt of centerline 100 meters
Drill - 12 x 145
5 -8 x145
Drill - 8 x 23
-Case
I Drill - 7 x 10
Case - 7 x 168
I Case - 6 x178
Test - 276
Pump - 1200 G P H
Total depth - 306
I Pumped at 140
24 Hr Drawdown - 35
I Water Good
C
I 0-7
WELL NO 27
Location Km 77 - Lt of centerline 100 meters
Drill - 12 x 174
Install amp Extract Case - 10 x 174
Case - 8 x 174
Drill - 9 x 68
Drill - 8 x 64
Case - 7 x 242
Case - 6 x 306
Test - 276
Pump - 4000 + G P H
Total Depth - 306
Pumpe at 240
24 Hr Drawdown - 0
Water Good
WELL NO 28- (Govt No 2465)
Location Km 63 - Rt of centerline 100 meters
Clean amp Extract Case - 300
Ream - 10 x 98
Ream - 8x 27
Ream - 6 x 12
Case - 8 x 98
Case - 6 x 125
Test - 276
Pump - 1000 + G P H
Total depth - 137
Pumped at 130
24 Hr Drawdown - 33
Water Good
C-8
WELL NO 30
Location Km 47 - Rt of centerline 400 meters
Drill - 12 x 132
Case - 10 x 89
Install amp Extract Case - 12 x 43
Drill - 10 x 117
Case - 7 x 242
Drill - 6 x 183
Install amp Extract Case - 6 x 408
Test - 276
Pump - 1000 G P H
Total depth - 408
Pumped at 160
24 Hr Drawdown - 77
Water Salty
WELL NO 31
- Lt of centerline 200 metersLocation Km 44
Drill - 12 x 110
Case - 10 x 100
Drill - 10 x 142
Case 8 x 142
Drill - 8 x 250
Case 7 x 392
Drill - 6 x 78
Test - 276
Pump - 3000 G P H
Total depth - 502
Pumped at 160
24 Hr Drawdown - 44
Water Salty
C-9
WELL NO 32
Location Km 42 - Lt of centerline 100 meters
Drill - 12 x 108
Case - 10 x 108
Drill - 10 x 212
Drill - 8 x 120
Case - 6 x 340
Case - 8 x 182
Test - 276
Pump - 3000 + G P H
Total depth - 448
Pumped at 160
24 Hr Drawdown - 20
Water Salty
WELL NO 34
Location Km 35 - Lt of centerline 200 meters
Drill - 12 x 230
Install amp Extract Case - 10 x 230
Drill - 8 x 30
Case -6 x 260
Drill - 6 x 160
Case -5 x 324
Case - 8 x 20
Test - 276
Pump -1000 + G P H
Total depth - 420
Pumped at 150
24 Hr Drawdown - 100
Water Salty
C-10
WELL NO 36
Location Km 7 N E along old track from Km 63
Drill - 12 x 180
Case - 10 x 180
Drill - 10 x 231
Case - 8 x 211
Drill- 8x 254
Case - 6 x 245
Test -276
Pump -4000 + G P H
Total depth - 265
Pumped at 180
24 Hr Drawdown - 0
Water Good
C-11
I 3 I 1 I I I I B j APPENDDC D
SYNOPSIS 0 KEY CORRESPONDENCE
3 DURING CONSTRUCTION
I pound I I I 1 I I
On September 1 1973 the Contractor confirmed the
estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts
On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project
On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be
obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated
On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine
On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation
On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension
On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension
On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval
On October 15 1973 the Engineer returned the construction progress schedule for correction
On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim
D-I
On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor
On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project
On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25
On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter
On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents
On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract
On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised
On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading
On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule
On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request
On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period
D-2
On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report
On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material
On August 19 1974 the Contractor submitted an updated construction progress schedule for approval
On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases
On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor
On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor
On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project
On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course
On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country
On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course
On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions
On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule
On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress
D-3
On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract
On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana
On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor
On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion
On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations
On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases
On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season
On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees
On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections
On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project
On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course
On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project
On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract
D-4
October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request
On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor
On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620
On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project
On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y
completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense
On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted
On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project
On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim
On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic
On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor
On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976
D-5
On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time
On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares
On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material
On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500
On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor
On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula
On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana
OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected
On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road
On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road
Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10
On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued
On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced
On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091
On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091
Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued
D-6
I I IUUU U U UU I U
E PROJECT PHOTOGRAPHS
I IIIU U I
I Crushing Plants Surface Course
Pit 2A
Pug Mill Blending Surface Course
Pit 25A
II Surface Course
Pit 25A
UURYPTOERTOSE Pug Mil Blending
Road Reserve Bush Clearing
Km 242
U
Embankment Construction Km 287
IN
Road Construction Water Supply
Km 189
ROADWAY UNDER CONSTRUTION
II
E-2
Stockpiling Material Base Course
Special Embankment Construction Km 232
Watering of Embankment Km 257
ROADWAY UNDER CONSTRUCTION E-3
Culvert Assembly
Twin Culvert with Sand-Cement Pitching
Multiple Culverts with Sand-Cement Pitching
CULVERT INSTALLATIONS E- 4
AT Km 25
AT Km 194
Emergency Landing Strip Kra 2605
FINISHED ROADWAY E- 5
AT Km 286
AT Chobe By-Pass Junction Km 297
I Chobe By-Pass Road Near Ngoma Bridge
E-6FINISHED ROADWAY
--- =1m =- M Il-- M=M m -
Sheet 1 of 4TABLE 4 - SCHEDULE OF FINAL CONTRACT QUANTITIES
Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount RandPula
No Description Measure Final Quantities US $ RandPula US $
101 Mobilization Lump Sum 10000 57077200 58360600 -0shy
201 Engineers Staff Housing 2-Bedroom House Each 1 3333 1300000 272100 1300000 272100
202 Engineers Staff Housing 3-Bedroom House Each 3 10000 1400000 339300 4200000 1017900
203 Engineers Staff Housing Technicians House Each 4 10000 650000 130100 2600000 520400
204 Engineers Staff Housing Jr Staff Housing Each 16 10000 112500 19600 1800000 313600
205 Moving amp Re-erection of Engineers Staff Housing Each move NOT APPLICABLE
206 Engineers Main Office Lump Sum 10000 1800000 306300
207 Engineers Main Laboratory Lump Sum 10000 2600000 407700
208 Moving amp Re-erection of Engineers Main Office Each Move NOT A P L I CA B L E and Main Laboratory
209 Engineers Forward OfficeLaboratory Each 2 10000 766300 1532600 -0shy
210 Additional Surveying Office Laboratory and Prime Cost 69809 1500000 1047146 -0-Communication Equipment
211 Contractors Expenses and Profit on Percent 69809 25 261787 -0-Prime Cost Item 210
212 Provide and Maintain Vehicles for ihe Engineers Staff Vmonth 304 Vmonth 24000 17100 7296000 5198400
301 Basic Survey and Setting Out km 370590 km 48500 13400 17973600 4965905
302 Clear Heavy Bush Hectare 514075 ha 23200 7500 11926540 3855563
303 Cleat Light Bush Hectare 70053 ha 15500 5000 10858215 3502650
304 Clear Grassy Hectare 1775 ha 12400 4000 2201000 710000
401 Prepare Sand Subgrade for Embankment m2 3335443 m 2 011 006 36689873 20012658
402 Prepare Clay Subgrade for Embankment m2 408450 m 2 023 011 9394350 4492950
501 Construct Standard Embankment i3 865895 m3 117 047 101309715 40697065
3502 Construct Special Embankment m3 254779 m 196 074 49936684 18853646
030 384035 129450503 Excavate Unsuitable Material m3 4315 m3 089
601 Base Course m3 538854 m3 310 120 167044740 64662480
602 Overhaul of Base Course Material m3km 46462 m3kr 028 010 1300936 464620
701 Remove Overburden from Surface Course Borrow Pits m3 260056 m3 060 016 15603360 4160896
702 Surface Course m3 457260 m3 545 210 249206700 96024600
703 Haul of Surface Course Material m3kmn 6572330 m3kr 0102 0034 67037766 22345922
TABLE 4 (Continued) Sheet 2 of 4
Item No Description
Unit of Measure
Total Revised Final Quantities
Contract Unit Price US $ RandPula
Final Revised Contract Amount US $ RandPula
801
802
803
Excavation and Backfill for Cuiverts up to 48 inches in diameter
Excavations for foundations of Culverts 48 inches and over
Backfilling culverts 48 inches and over
m3
m3
m3
558512 m3
94946 m3
322010 m3
480
270
490
330
140
360
2680858
256352
1577849
1843090
132923
1159236
804 Nestable Galvanized Corrugated Metal Pipe 18 inches in diameter 14 USSG
PIPE LM 249963 LM 4380 820 10948379 2049697
END SECTIONS Each 388 each 6660 225 2584080 87300
805 Nestable Galvanized Corrugated Metal Pipe 24 inches in diameter 14 USSG
PIPE LM 28104 LM 5560 1100 1562582 309144
Supply additional 24 inch diam Pipe 114035
END SECTIONS Each 34 each 10200 800 345800 27200
Supply additional End Sections 30600
806 Nestable Galvanized Corrugated Metal Pipe 36 inches in diameter 12 USSG
PIPE LM 19506 LM 10500 1600 2048130 312096
END SECTIONS Each 28 each 27600 2100 772800 58800
807 Nestable Galvanized Corrugated Metal Pipe 48 inches in diameter 12 USSG
PIPE LM 11522 each 13500 2200 1555470 253484
Supply additional 48 inch diam Pipe 10480
END SECTIONS Each 10 each 76200 4300 762000 43000
808 Nestable Galvanized Corrugated Metal Pipe 60 inches in diameter 10 USSG
PIPE LM 48768 LM 20400 2700 9948672 1316736
Supply additional 60 inch diam Pipe 47510
809
810
811
Excavate inlet and outlet drains mitre ditches and roadway ditches
Sand-cement Pitching
Clay slope Protection
m3
m3
m2
477781 m3
276769 m3
NA
110
2300
030
3000
100
525559
636569
-0-
143334
830307
-0shy
Supplied but not installed
mi -blN mN -m~ m ml m min nmlW arm~ nn- a a a a1 al a
TABLE 4 (Continued) Sheet 3 of 4
Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount No Description
812 Supply Nestable Galvanized Corrugated
Metal Pipe 18 inches in diameter 14 USSG
PIPE
END SECTIONS
901 Construct Maintenance Facility Complex
902 Water Pump
903 Contractors Expenses and Profit on Prime Cost Item 902
1001 Road Signs
1002 Guide Posts
1003 Kilometre Posts
Dayworks
TOTAL-SCHEDULE OF QUANTITIES
a
0) CO I CO 2
TAMS Staff Hotel Accommodation
Air Conditioners TCN Houses
CO 3
CO 4
NA (Progress Payment Permanent Material)
Additional TCN Housing
SUB-TOTAL
CO 5 POL Escalation Cost
CO 6 POL Escalation Cost
CO 7 POL Escalation Cost
SUB-TOTAL
LESS OVERPAYMENT
TOTAL POL ESCALATION COST
CO 8 Interim Allowance (Wage)
CO 9 Wage Escalation Cost
SUB-TOTAL
LESS OVERPAYMENT
TOTAL WAGE ESCALATION COST
Measure
LM
Each
Lump Sum
PC Sum
25
Each
Each
Each
As directed
Each
Final Quantities
238 LM
0 each
98
284 each
900 each
182 each
100
100
100
NA
6
100
100
100
100
100
US $
3400
6700
8520
As Billed
650000
As Shown
As Shown
As Shown
As Shown
As Shown
RandPula
900000
1000
1450
1500
130100
US $
809200
-0-
13014800
-0-
-0-
2419680
-0-
-0-
5999421
882317486
376898
3900000
4276898
RandPula
-0shy
-0shy
7308700
255223
63806
284000
1305000
273000
-0shy
310970881
842138
5307
780600
1628045
575601
1815344
77277517
79668462
1661539
78006923
297802
16022556
16320358
125720
16194638
TABLE 4 (Continued)
Item No Description
Unit of Measure
Total Revised Final Quantities
Contract Unit Price US $ RandPula
Sheet 4 of 4
Final Revised Contract Amount US $ RandPula
CO 10
CO 11
CO 12
Road Reserve cleared way Chobe River By-pass (included under items 302 303 and 304)
Importation Additional Sheeps foot roller (included under item 101)
Minor realignment of roadway at Nata
TOTAL CONSTRUCTION COST
100
100
100
886594384 406800487
ishy
I I I I I I I I
APPENDIX A
I CONSTRUCTION EQUIPMENT
I I I I U I I I I I
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT
I Descqription
2 Chevrolet Impala Sedan
5 jeep-Wagoner
7 jeep-Wagoner
1 Chevrolet Vega
23 Chevrolet Pickup
19 Mack Tractor (T675-8W)
2 Chevrolet Flat Bed
5 Mack-Platform Stake (T426-3500)
1 Mack-2000 Gal Fuel (T426-3500)
4 Mack Dump Truck 10 cy
2 Chevrolet Dump Truck 5 cy
1 Mack-Birmingham Tandum Lowboy Trailer
2 Mack-Gindy 25 Ton Tandum Semi Trailer
8 Heil- P3S 303 cy Dump Trailer
I 7 Fruehauf-TEO-F3-R 10000 Gal Tanker
5 Fruehauf-TEO-F2-R 6500 Gal Tanker
5 Fruehauf-Tandum Axle Dolly
2 Barko 14000 Telescopic Crane
6 Cobey 1062 Wagon Trailer
1 Cedarapids 443 Commander Crusher
1 Peerless Portable Base Stabilisation Plant
2 Atlantic International Water Treatment Plant
6 Caterpillar 631-B TractorS631-B Scraper
7 Caterpillar D8-H Dozer
2 4
Caterpillar D9- Dozer Caterpillar D6-C Dozer
2 Caterpillar 12-F Grader
5 Caterpillar 14-E Grader
U A-i
1
I
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (Cont)
Quantity
4
1
4
11Raygo
1
S1 2
ICaterpillar-200KW 3
1
1
1
1
1
3
2 2
2
I
1
2
2
I
1 2
8
1
j 8
1 4
9
1
Description
Caterpillar 966 Loader
Trojan 4000 Loader
Raygo 400A Compactor Vibrator
410A Compactor Vibrator
Vibro Plus Vibrating Sheepsfoot Roller
Bros 10000 Compactor
Bros 6000 Compactor
Generator Caterpillar - 125KW Generator
Little Reddevil Generator
Kholer 3KW Generator
Kholer 2KW Generator
Detroit Diesel Generator (2D-32)
Kholer Generator (5CKM61)
Hobart GR-3 03 Welders w trolley
Worthington 365 Compressor Worthington 160 Compressor
Kellypower Tamper
John Deere 2700 Disc Harrow10 Cut
ohn Deere 1630 Disc Harrow 7 Cut
Worthington WS-55 Rock Drill
Alemite Portable Service Station
Graco Lube Ranger
Worthington Wagon Drill
Layne Bowler Deep Well Pump
Layne Bowler Pump only
4 Centrifugal Pump
2 Centrifugal Pump
Columbian Steel Water Tanks 20000 US Gal
A-2
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (contd)
Quanti
1I Description
Caterpillar Parallel Shank Ripper
2 Fleco Blade Rake
4 Chainsaw
3 Gardner-Denver Compressor
5 Aerotron Radio Transmitters $1203
7 Aerotron Radio Receivers $2 10
16 SSB Radio Transceivers $1340
8 Auxilliary Radio Transceivers $1340
2 Cevy 4 x 4 Pickup Truck 8 Chevy 2 x 4 Pickup Truck
1 L B Smith Cone Crusher
2 Ford 4 x 4 (1164-14C Tractor)
2 Bros Sheepsfoot Roller
1 Hyster Towed Vibratory Compactor
During 1975 and 1976 the Contractor added the following listed equipment
1 Caterpillar No 14 Motor Grader
1 Caterpillar No 966 Loader
1 Trojan No 4000 Loader
1 Cone Crushing Plant 3 ft Standard Fine Bowl with 4 Deck Screens
4 Conveyor Units
A-3
I 1 I I I U I I
APPENDIX B
I I SOILS AND MATERIALS
I I 1 I I I I I 1
APPENDIX B
SOILS AND MATERIALS
(a) General
The road pavement is composed basically of two layers the surface
course and base course overlaying a compacted subgrade or embankment
The sources and volumes of the surface course and base course materials
are indicated in the Materials Utilization Diagrams included as Figures B-i
through B-4
(b) Subgrade
The subgrade soil consists primarily of aeolian fine sand except
for approximately 36 kilometers of the road for which the subgrade is a pan material consisting of clay In the pan areas special 1 Om thick
embankments were constructed with plasticity and fineness control of material
The subgrade and embankment soils were compacted to a minimum of 90
of modified AASHTO compaction The measured mean relative compaction
obtained immediately after compaction of the subgrade was 935 of the modified AASHTO maximum density
(c) Base Course
The majority of the base course materials are derived from aeolian deposits ie fine sand with a trace to some silty clay The
remaining base bourse approximately 15 of the total was obtained from pits having a large component of gravel The 15cm thick base
course is bank run or blended material for which the amounts of fines
and plasticity were controlled The base course materials were obtained from 123 base borrow pits and compacted to a minimum 95 of modified AASHTO density The measured mean relative compaction
directly after construction was 96 of the modified AASHTO maximum
density
(d) Surface Course
The 15cm thick surface course is well graded sandy gravel with
some silty clay fraction The materials for the road segment from
Kilometer 0+000 to Kilometer 173+000 are derived from calcrete deposits
while the materials for the remaining portion are derived from weathered
3-1
bedrock The surface course has controlled gradation plasticity and
durability to obtain sufficient strength to reduce ravelling to a minimum
particularly during the dry season and to resist the wear of traffic
Surface course materials have been obtained by screening crushing
and blending materials from 9 borrow areas and were compacted to a
minimum of 98 of modified AASUTO maximum dry density The comshy
posite properties for each borrow pit are indicated in the Average
Gradation Ourvesincluded as Figures B-5 through B-13 Directly
after construction of the surface course the measured mean relative
compaction was 100 of the modified AASHTO maximum density
B-2
N A TA K A ZUN GU LA RO0A D 70 033 90 CC
00 00 0 0 0+I 03- 30L K
0 I I
M 3 100 0002L [2
_
MATERIALS UTILIZATION DIAGRAM Fiure -I
NATA - KAZUNGULA ROAD
+--- 121
y T
MATERIALS UTILIZATION DIAGRAM Fgure R-Z
NAT A - KAZ UN GULA ROAD
07 2 230K300 220 220 232 252
I 3 3 2
MATERIALS UTILIZATION DIAGRAM Figure 2-3
itLT-m
CHOBE RIVER BY-PASS ROAD 02__ Q___ 0 60 40 - 0 50 0 i
-F-CEL
-Tl J-II II
MATERIALS UTILIZATION DIAGRAM Figure B-4
3 SIEVE ANALYSIS SMI~ia VIII
IY UN In~ VI STAISRS SIEVE NUMBfh SUE9 - usuLguNuus O-- aoIiUl- I1
11I a to to 0 i oIIIa lf I
II
SN Cu ye B
II N
o
i B _ ___~ N II 1 l s - Curi e At-
I 2 I a 6 4 2 i5 4 3 2 a -
GRAIN I IZE MILTERS
SILT AND CLAY SOILS GRAVEL SAND
I NUMBE1RSAMPLE DEPTH LL KIE IPTIONIELEV P1 ECIT
A Composit 38 19 CrusherAverage Runof 192 samples
B Composit 33 17 Surface Course Blend asAverage of 236 samples placed
MDD 1960 kgm Los Angeles Abrasion = 42 Average Blend Added 15=
REPUBLIC OF BOTSWANA TI PPETTS-ASSETT-NcCAIThY-STRATTOU MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY BOTSWANA-ZAMBIA GRAIN SIZE DISTRIBUTION BY DmArTE Q76HIGHWAY j PIT 2A DOi FIGURE B-5
E ANLYSISSIEVE NALYSIS NI
OPEING - In jS PhIMS-SEVE iNRh3EN son - MILLIMETER
V11 6plusmn SSIEVE
6 i S 0-4 0 10 miUS) 3055 3 001mesa a
9 I I I - -
Crye B
S bull
1TCrii INN20 1 e A- NI deg I FIK 46591 2 a045 4 2 1115 5 2 6
GRIISZ IN MILLIMETERS
COACE iE NtIUM FI SILT AD CLAY SOILSGRAVEL SAND
5r IBSAMPLE DEPTH ELEV LLP1
A Composite 28 10 Crusher Run Average of 229 samples
B Composite 28 11 Surface Course Blend as Placed Average of 58 samples
2050 kgm3 Averaoe Blend Added shy
TIPPETTS-ASETT-NCCARTIY-STATTONREPUBLIC OF BOTSWANA NEW YORK NY
MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS
BRAIN SIZE DISTRIBUTION BY NCZ jAATE9 876BOTSWANA-ZAMBIA
HIGHWAY PIT 14 amp 14A OWN FIGURE B-6
i
S ANALYSIS 01 ANALYSIS
SIEVE - n -IIII- SIZ-MII- - IN i
It a s 1
Ue a -- e B
- 1 -I-[_I - I I I
6l51 10 8 $514 1 O is 05I I 21 8GANSZNILMTR OA RE Filo 9OA-1i 1DI UM F log S ILT AND CLAY SO ILS
GRAVEL nSAND
E--l I UNEASMPLEDEPlTH ELEV LL P1 KWKIPTION
A Composite 36 19 Crusher Run
Average of 116 Samples
B Composite 36 15 Surface Course Blend Average of 138 samples
H GHWA E SA 18 SILT ANDURCLA-SIL
3kgm Los Angeles Abrasion 28
Av agau Pnd AAd = 907 ITI UETT$-ABBTT-NcentcentARTNY-STRATTON
NEW YORK NY
REPUBLIC OF BOTSWANA
MINISTRY OF WORKS amp COM24UNICATIONSIT NINEERS1
I I MGIELI7 I 1 8AIIGIWAE
I
4
SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU
V 1 Oe 001l
- -r--I-I -- I
S E- -IN S
KI zz7llfl$zIIIti z I
low560
20
2
IGRAIN SIZE IN MILLIMETERS
COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS
GRAVEL SAND
SAMP DEPTH ELEV L P1 0NBERIIPTI
A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples
B Composit( 28 13 Surface Course Blend as Placed
Average of 85 samples
Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA
REPUBLIC OF BOTSWANA TI EfTTS-AIETT-NCARTY-STRATTOi ITTqTPI yen O WOVQ A n rn WTraTTn~lz ENGINEERS NEW YOlK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8
-D IUR IB
II SIEVE ANALYIIS 1411 I LYIlMll
[urn $11min - I I ITUSE IVV I - mampINimums1 -l0 n 001
a1 i 4 is s 0 aL w I 2 0665S a a 4 i 0i
-7sl
96---
I RI IE IN M IEER
CfliEI FIN g o au SIT SILFIN M40 5C o432 14593 ry B6
ver 7 samples
NUMBE NERPI
Ay I GRAIN SIZE IN MILLIMETR
5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND
A Q A- Aii dd d~A
IMUBEIRIIIIPIi
3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables
B Composit 26 13 Surface Course BlendU as Placed
Average of 79 samples
AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =
REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9
SIEVE ANALYSIS IMmv na awLYoia
SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I
I- 01 001
e---__
Ir1 -NIP_]
20
OA
$05 9 2
E
I
86543
I
7tN
2 1 65
_OAlEED t
5 2
FN
I
GRAIN SIZE IN MILLIMETERS
1 111I
NU BE GRAVEL
COARSE
I
MEDIUM
I SAND
FSILT AND CLAY SOILS
SAMPLE4 DEP EEY 1 SCBI1PTIORI
A
B
Composite
Composite
38
26
17
13
Crusher Run Basaltic Aggregate
Average of 176 samples
Surface Course Blend -s Placed Average of 58 samples
Average MDD = 2135 kgm Los Angeles Abrasion = 38
Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY
WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971
3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10
SIEVE ANIALYSIS lNVINI1111 ANALYSIS
I EV OPE IN - INI8 TOSIIEENN1-MLII
I
I - - i ii 0
I GRI SIZEto N OILS 1
I ANDLI IS
G VELIZE I
IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL
-APL ESN
DEPTH ELEY LL PI DESCRIPTIONNUSMBE
3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples
B Composite 26 13 Surface Course Blend as Placed Average of 58 samples
Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34
Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY
BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11
___ I
SIEVE ANALYSIS W11 ANKEm SIS
SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS
01 001
sodego
i i
U Ae
6 559 2 a65 3 2 1 6532 S
II GRAIN SIZE INMILLIMETERS
=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL
GRAVEL SN
I SAMPE DEPTH ELEV LL P)S DESCRIPTION
A omposite 28 10 Crusher Run
SAverage of 72 samples
B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples
Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20
REPUBLICUINISTRY 0OF OF
BOTSWANA WORKS amp COMMUNIGTIONS
TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12
I
SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM
-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U
I _
I1li
Ia _ Cu ve
N IC A11
IQI II
1 IG S IIIMETE
I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND
SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION
A Composite 34 15 Crusher Run Average of 74 samples
B Composite 29 12 Surface Course Blend as Placed
Average of 42 samples
MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15
REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA
ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N
NEW sy cKA
YORK NYT E-2 5 1 7 7
HIGHWAY PIT 32A Mwe FIGURE B-13
I I I I I I I I
APPENDIX C
I WATER WELL LOCATIONS
I I I I I I I I I
APPENDIX C WATER WELL LOCATIONS
WELL NO 3
Location Km 171 Lt of centerline 200 meters
Drill - 6 x 392
Ream - 8 x 92
Case - 6 x 84
Test - 24 Hours - 276
Pump 6000 G P H
Total depth - 392
Pumped at 150
24 Hr Drawdown - 3
Water Good
WELL NO 4
Location Km 175 - Lt of centerline 100 meters
Drill - 6 x 380
Ream - 8 x 82
Case - 7 x 82
Test - 276
Pump 1800 G P H
Total depth - 380
Pumped at 200
Drawdown 24 Hr - 100
Water Good
WELL NO 5 (Govt No 2436
Location Km 178 - Lt of centerline 115 meters
Test -276
Pump - 1400 G P H
Total depth - 160
Pumped at 140
24 Hr Drawdown - 60
Water Good C-1
WELL NO 6
Location Km 183 - Lt of centerline 60 meters
Drill - 6 x 436
Ream - 8 x 86
Case - 7 x 86
Test - 276
Pump - 500 G P H
Total depth - 436
Pumped at 250
24 Hr Drawdown - 150
Water Good
WELL NO 7 - (Govt No 2435)
Location Km 189 - Rt of centerline 100 meters
Clean amp Test
Pump - 6000 G P H
Pumped at 140
24 Hr Drawdown - 10
Water Good
WELL NO 14
Location Km 252 - Lt of centerline 100 meters
Drill - 6 x 250
Ream - 8 x 53
Case - 6 x 53
Test - 276
Pump - 6000 G P H
Total depth - 250
Pumped at 150
24 Hr Drawdown - 6
Water Good
C-2
WELL AT KM 256 MAINTENANCE FACILITY NO 3
Location Km 256 - Lt of centerline 200 meters
Depth - 100 feet
Water Rest Level - 42 feet
Depth Pump Set - 70 feet
24 Hr Test - 1800 G P H
WELL NO 15
Location Km 245 - Rt of centerline 40 meters
Drill - 6 x 260
Ream - 8 x 54
Case - 54
Test -276
Pump - 1500 G P H
Total depth - 260
Pumped at 200
24 Hr Drawdown - 140
Water Good
WELL NO 16 Location Km 236 -Rt of centerline 30 meters
Drill - 6 x 250
Ream - 8 x 22
Case - 6 x 22
Test - 276
Pump -6000 G P H
Total depth - 288
Pumped at 150
24 Hr Drawdown - 10
Water Good
C-3
WELL NO 17
Location Km 224 - Rt of centerline 30 meters
Drill - 10 x 89
Case - 8 x 85
Drill- 8x 43
Drill - 6 x 38
Case -6 x 132
Test - 276
Pump -2000 G P H
Total Depth - 170
Pumped at 100
24 Hr Drawdown - 11
Water Good
WELL NO 18
Location Km 217 - Lt of centerline 200 meters
Drill -i0 x 70
Case - 7 x 70
Drill - 7 x 52
Drill - 6 x 88
Case - 6 x 122
Test - 276
Pump 2400 G P H
Total depth - 210
Pumped at 200
24 Hr Drawdown - 140
Water Good
C-4
WELL NO 19
Location Km 213 - Lt of centerline 100 meters
Drill - 10 x 44
Case - 8 x 40
Drill - 8 x 76
Drill 6 x 130
Case - 6 x 120
Test - 276
Pump - 6000 G P H
Total depth - 210
Pumped at 60
24 Hr Drawdown - 10
Water Good
WELL NO 20
Location Km 143 - Rt of centerline 100 meters
Drill - 10 x 240
Case - 7 x 220
Drill -6 x 378
Case - 6 x 240
Case - 5 x 240
Test - 276
Pump -1500 G P H
Total depth - 618
Pumped at 460
24 Hr Drawdown - 105
Water slightly salty to taste but drinkable
C-5
WELL NO 23
Location Km 139 - Lt of centerline 100 meters
Drill - 12 x 290
Place amp Extract Case - 10 x 290
Drill - 8 x 30
Drill - 6 x 40
Case - 8 x 290
Case - 6 x 320
Test - 276
Pump - 1200 G P H
Total depth - 360
Pumped at 330
24 Hr Drawdown - 120
Water salty
WELL NO 24
Location Km 135 - Lt of centerline 500 meters
Drill - 12 x 270
Drill - 10 x 10
Case - 10 x 270
Drill -8 x 30
Case - 8 x 290
Case -6 x 310
Case - 5 x 320
Test -276
Pump -4000 +G P H
Total depth - 320
Pumped at 270
24 Hr Drawdown - 2
Water Salty
C-6
I
5
WELL KM 205 MAINTENANCE FACILITY NO 2
Location Km 105 - Lt of centerline 40 meters
Depth - 302 feet
~ Water Rest Level - 82 feet
Depth Pump Set - 150 feet
48 Hr Test - 3000 + G P H
WELL NO 26
Location Km 82 - Lt of centerline 100 meters
Drill - 12 x 145
5 -8 x145
Drill - 8 x 23
-Case
I Drill - 7 x 10
Case - 7 x 168
I Case - 6 x178
Test - 276
Pump - 1200 G P H
Total depth - 306
I Pumped at 140
24 Hr Drawdown - 35
I Water Good
C
I 0-7
WELL NO 27
Location Km 77 - Lt of centerline 100 meters
Drill - 12 x 174
Install amp Extract Case - 10 x 174
Case - 8 x 174
Drill - 9 x 68
Drill - 8 x 64
Case - 7 x 242
Case - 6 x 306
Test - 276
Pump - 4000 + G P H
Total Depth - 306
Pumpe at 240
24 Hr Drawdown - 0
Water Good
WELL NO 28- (Govt No 2465)
Location Km 63 - Rt of centerline 100 meters
Clean amp Extract Case - 300
Ream - 10 x 98
Ream - 8x 27
Ream - 6 x 12
Case - 8 x 98
Case - 6 x 125
Test - 276
Pump - 1000 + G P H
Total depth - 137
Pumped at 130
24 Hr Drawdown - 33
Water Good
C-8
WELL NO 30
Location Km 47 - Rt of centerline 400 meters
Drill - 12 x 132
Case - 10 x 89
Install amp Extract Case - 12 x 43
Drill - 10 x 117
Case - 7 x 242
Drill - 6 x 183
Install amp Extract Case - 6 x 408
Test - 276
Pump - 1000 G P H
Total depth - 408
Pumped at 160
24 Hr Drawdown - 77
Water Salty
WELL NO 31
- Lt of centerline 200 metersLocation Km 44
Drill - 12 x 110
Case - 10 x 100
Drill - 10 x 142
Case 8 x 142
Drill - 8 x 250
Case 7 x 392
Drill - 6 x 78
Test - 276
Pump - 3000 G P H
Total depth - 502
Pumped at 160
24 Hr Drawdown - 44
Water Salty
C-9
WELL NO 32
Location Km 42 - Lt of centerline 100 meters
Drill - 12 x 108
Case - 10 x 108
Drill - 10 x 212
Drill - 8 x 120
Case - 6 x 340
Case - 8 x 182
Test - 276
Pump - 3000 + G P H
Total depth - 448
Pumped at 160
24 Hr Drawdown - 20
Water Salty
WELL NO 34
Location Km 35 - Lt of centerline 200 meters
Drill - 12 x 230
Install amp Extract Case - 10 x 230
Drill - 8 x 30
Case -6 x 260
Drill - 6 x 160
Case -5 x 324
Case - 8 x 20
Test - 276
Pump -1000 + G P H
Total depth - 420
Pumped at 150
24 Hr Drawdown - 100
Water Salty
C-10
WELL NO 36
Location Km 7 N E along old track from Km 63
Drill - 12 x 180
Case - 10 x 180
Drill - 10 x 231
Case - 8 x 211
Drill- 8x 254
Case - 6 x 245
Test -276
Pump -4000 + G P H
Total depth - 265
Pumped at 180
24 Hr Drawdown - 0
Water Good
C-11
I 3 I 1 I I I I B j APPENDDC D
SYNOPSIS 0 KEY CORRESPONDENCE
3 DURING CONSTRUCTION
I pound I I I 1 I I
On September 1 1973 the Contractor confirmed the
estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts
On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project
On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be
obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated
On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine
On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation
On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension
On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension
On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval
On October 15 1973 the Engineer returned the construction progress schedule for correction
On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim
D-I
On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor
On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project
On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25
On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter
On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents
On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract
On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised
On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading
On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule
On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request
On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period
D-2
On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report
On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material
On August 19 1974 the Contractor submitted an updated construction progress schedule for approval
On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases
On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor
On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor
On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project
On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course
On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country
On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course
On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions
On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule
On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress
D-3
On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract
On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana
On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor
On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion
On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations
On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases
On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season
On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees
On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections
On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project
On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course
On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project
On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract
D-4
October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request
On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor
On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620
On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project
On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y
completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense
On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted
On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project
On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim
On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic
On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor
On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976
D-5
On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time
On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares
On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material
On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500
On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor
On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula
On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana
OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected
On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road
On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road
Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10
On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued
On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced
On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091
On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091
Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued
D-6
I I IUUU U U UU I U
E PROJECT PHOTOGRAPHS
I IIIU U I
I Crushing Plants Surface Course
Pit 2A
Pug Mill Blending Surface Course
Pit 25A
II Surface Course
Pit 25A
UURYPTOERTOSE Pug Mil Blending
Road Reserve Bush Clearing
Km 242
U
Embankment Construction Km 287
IN
Road Construction Water Supply
Km 189
ROADWAY UNDER CONSTRUTION
II
E-2
Stockpiling Material Base Course
Special Embankment Construction Km 232
Watering of Embankment Km 257
ROADWAY UNDER CONSTRUCTION E-3
Culvert Assembly
Twin Culvert with Sand-Cement Pitching
Multiple Culverts with Sand-Cement Pitching
CULVERT INSTALLATIONS E- 4
AT Km 25
AT Km 194
Emergency Landing Strip Kra 2605
FINISHED ROADWAY E- 5
AT Km 286
AT Chobe By-Pass Junction Km 297
I Chobe By-Pass Road Near Ngoma Bridge
E-6FINISHED ROADWAY
TABLE 4 (Continued) Sheet 2 of 4
Item No Description
Unit of Measure
Total Revised Final Quantities
Contract Unit Price US $ RandPula
Final Revised Contract Amount US $ RandPula
801
802
803
Excavation and Backfill for Cuiverts up to 48 inches in diameter
Excavations for foundations of Culverts 48 inches and over
Backfilling culverts 48 inches and over
m3
m3
m3
558512 m3
94946 m3
322010 m3
480
270
490
330
140
360
2680858
256352
1577849
1843090
132923
1159236
804 Nestable Galvanized Corrugated Metal Pipe 18 inches in diameter 14 USSG
PIPE LM 249963 LM 4380 820 10948379 2049697
END SECTIONS Each 388 each 6660 225 2584080 87300
805 Nestable Galvanized Corrugated Metal Pipe 24 inches in diameter 14 USSG
PIPE LM 28104 LM 5560 1100 1562582 309144
Supply additional 24 inch diam Pipe 114035
END SECTIONS Each 34 each 10200 800 345800 27200
Supply additional End Sections 30600
806 Nestable Galvanized Corrugated Metal Pipe 36 inches in diameter 12 USSG
PIPE LM 19506 LM 10500 1600 2048130 312096
END SECTIONS Each 28 each 27600 2100 772800 58800
807 Nestable Galvanized Corrugated Metal Pipe 48 inches in diameter 12 USSG
PIPE LM 11522 each 13500 2200 1555470 253484
Supply additional 48 inch diam Pipe 10480
END SECTIONS Each 10 each 76200 4300 762000 43000
808 Nestable Galvanized Corrugated Metal Pipe 60 inches in diameter 10 USSG
PIPE LM 48768 LM 20400 2700 9948672 1316736
Supply additional 60 inch diam Pipe 47510
809
810
811
Excavate inlet and outlet drains mitre ditches and roadway ditches
Sand-cement Pitching
Clay slope Protection
m3
m3
m2
477781 m3
276769 m3
NA
110
2300
030
3000
100
525559
636569
-0-
143334
830307
-0shy
Supplied but not installed
mi -blN mN -m~ m ml m min nmlW arm~ nn- a a a a1 al a
TABLE 4 (Continued) Sheet 3 of 4
Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount No Description
812 Supply Nestable Galvanized Corrugated
Metal Pipe 18 inches in diameter 14 USSG
PIPE
END SECTIONS
901 Construct Maintenance Facility Complex
902 Water Pump
903 Contractors Expenses and Profit on Prime Cost Item 902
1001 Road Signs
1002 Guide Posts
1003 Kilometre Posts
Dayworks
TOTAL-SCHEDULE OF QUANTITIES
a
0) CO I CO 2
TAMS Staff Hotel Accommodation
Air Conditioners TCN Houses
CO 3
CO 4
NA (Progress Payment Permanent Material)
Additional TCN Housing
SUB-TOTAL
CO 5 POL Escalation Cost
CO 6 POL Escalation Cost
CO 7 POL Escalation Cost
SUB-TOTAL
LESS OVERPAYMENT
TOTAL POL ESCALATION COST
CO 8 Interim Allowance (Wage)
CO 9 Wage Escalation Cost
SUB-TOTAL
LESS OVERPAYMENT
TOTAL WAGE ESCALATION COST
Measure
LM
Each
Lump Sum
PC Sum
25
Each
Each
Each
As directed
Each
Final Quantities
238 LM
0 each
98
284 each
900 each
182 each
100
100
100
NA
6
100
100
100
100
100
US $
3400
6700
8520
As Billed
650000
As Shown
As Shown
As Shown
As Shown
As Shown
RandPula
900000
1000
1450
1500
130100
US $
809200
-0-
13014800
-0-
-0-
2419680
-0-
-0-
5999421
882317486
376898
3900000
4276898
RandPula
-0shy
-0shy
7308700
255223
63806
284000
1305000
273000
-0shy
310970881
842138
5307
780600
1628045
575601
1815344
77277517
79668462
1661539
78006923
297802
16022556
16320358
125720
16194638
TABLE 4 (Continued)
Item No Description
Unit of Measure
Total Revised Final Quantities
Contract Unit Price US $ RandPula
Sheet 4 of 4
Final Revised Contract Amount US $ RandPula
CO 10
CO 11
CO 12
Road Reserve cleared way Chobe River By-pass (included under items 302 303 and 304)
Importation Additional Sheeps foot roller (included under item 101)
Minor realignment of roadway at Nata
TOTAL CONSTRUCTION COST
100
100
100
886594384 406800487
ishy
I I I I I I I I
APPENDIX A
I CONSTRUCTION EQUIPMENT
I I I I U I I I I I
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT
I Descqription
2 Chevrolet Impala Sedan
5 jeep-Wagoner
7 jeep-Wagoner
1 Chevrolet Vega
23 Chevrolet Pickup
19 Mack Tractor (T675-8W)
2 Chevrolet Flat Bed
5 Mack-Platform Stake (T426-3500)
1 Mack-2000 Gal Fuel (T426-3500)
4 Mack Dump Truck 10 cy
2 Chevrolet Dump Truck 5 cy
1 Mack-Birmingham Tandum Lowboy Trailer
2 Mack-Gindy 25 Ton Tandum Semi Trailer
8 Heil- P3S 303 cy Dump Trailer
I 7 Fruehauf-TEO-F3-R 10000 Gal Tanker
5 Fruehauf-TEO-F2-R 6500 Gal Tanker
5 Fruehauf-Tandum Axle Dolly
2 Barko 14000 Telescopic Crane
6 Cobey 1062 Wagon Trailer
1 Cedarapids 443 Commander Crusher
1 Peerless Portable Base Stabilisation Plant
2 Atlantic International Water Treatment Plant
6 Caterpillar 631-B TractorS631-B Scraper
7 Caterpillar D8-H Dozer
2 4
Caterpillar D9- Dozer Caterpillar D6-C Dozer
2 Caterpillar 12-F Grader
5 Caterpillar 14-E Grader
U A-i
1
I
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (Cont)
Quantity
4
1
4
11Raygo
1
S1 2
ICaterpillar-200KW 3
1
1
1
1
1
3
2 2
2
I
1
2
2
I
1 2
8
1
j 8
1 4
9
1
Description
Caterpillar 966 Loader
Trojan 4000 Loader
Raygo 400A Compactor Vibrator
410A Compactor Vibrator
Vibro Plus Vibrating Sheepsfoot Roller
Bros 10000 Compactor
Bros 6000 Compactor
Generator Caterpillar - 125KW Generator
Little Reddevil Generator
Kholer 3KW Generator
Kholer 2KW Generator
Detroit Diesel Generator (2D-32)
Kholer Generator (5CKM61)
Hobart GR-3 03 Welders w trolley
Worthington 365 Compressor Worthington 160 Compressor
Kellypower Tamper
John Deere 2700 Disc Harrow10 Cut
ohn Deere 1630 Disc Harrow 7 Cut
Worthington WS-55 Rock Drill
Alemite Portable Service Station
Graco Lube Ranger
Worthington Wagon Drill
Layne Bowler Deep Well Pump
Layne Bowler Pump only
4 Centrifugal Pump
2 Centrifugal Pump
Columbian Steel Water Tanks 20000 US Gal
A-2
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (contd)
Quanti
1I Description
Caterpillar Parallel Shank Ripper
2 Fleco Blade Rake
4 Chainsaw
3 Gardner-Denver Compressor
5 Aerotron Radio Transmitters $1203
7 Aerotron Radio Receivers $2 10
16 SSB Radio Transceivers $1340
8 Auxilliary Radio Transceivers $1340
2 Cevy 4 x 4 Pickup Truck 8 Chevy 2 x 4 Pickup Truck
1 L B Smith Cone Crusher
2 Ford 4 x 4 (1164-14C Tractor)
2 Bros Sheepsfoot Roller
1 Hyster Towed Vibratory Compactor
During 1975 and 1976 the Contractor added the following listed equipment
1 Caterpillar No 14 Motor Grader
1 Caterpillar No 966 Loader
1 Trojan No 4000 Loader
1 Cone Crushing Plant 3 ft Standard Fine Bowl with 4 Deck Screens
4 Conveyor Units
A-3
I 1 I I I U I I
APPENDIX B
I I SOILS AND MATERIALS
I I 1 I I I I I 1
APPENDIX B
SOILS AND MATERIALS
(a) General
The road pavement is composed basically of two layers the surface
course and base course overlaying a compacted subgrade or embankment
The sources and volumes of the surface course and base course materials
are indicated in the Materials Utilization Diagrams included as Figures B-i
through B-4
(b) Subgrade
The subgrade soil consists primarily of aeolian fine sand except
for approximately 36 kilometers of the road for which the subgrade is a pan material consisting of clay In the pan areas special 1 Om thick
embankments were constructed with plasticity and fineness control of material
The subgrade and embankment soils were compacted to a minimum of 90
of modified AASHTO compaction The measured mean relative compaction
obtained immediately after compaction of the subgrade was 935 of the modified AASHTO maximum density
(c) Base Course
The majority of the base course materials are derived from aeolian deposits ie fine sand with a trace to some silty clay The
remaining base bourse approximately 15 of the total was obtained from pits having a large component of gravel The 15cm thick base
course is bank run or blended material for which the amounts of fines
and plasticity were controlled The base course materials were obtained from 123 base borrow pits and compacted to a minimum 95 of modified AASHTO density The measured mean relative compaction
directly after construction was 96 of the modified AASHTO maximum
density
(d) Surface Course
The 15cm thick surface course is well graded sandy gravel with
some silty clay fraction The materials for the road segment from
Kilometer 0+000 to Kilometer 173+000 are derived from calcrete deposits
while the materials for the remaining portion are derived from weathered
3-1
bedrock The surface course has controlled gradation plasticity and
durability to obtain sufficient strength to reduce ravelling to a minimum
particularly during the dry season and to resist the wear of traffic
Surface course materials have been obtained by screening crushing
and blending materials from 9 borrow areas and were compacted to a
minimum of 98 of modified AASUTO maximum dry density The comshy
posite properties for each borrow pit are indicated in the Average
Gradation Ourvesincluded as Figures B-5 through B-13 Directly
after construction of the surface course the measured mean relative
compaction was 100 of the modified AASHTO maximum density
B-2
N A TA K A ZUN GU LA RO0A D 70 033 90 CC
00 00 0 0 0+I 03- 30L K
0 I I
M 3 100 0002L [2
_
MATERIALS UTILIZATION DIAGRAM Fiure -I
NATA - KAZUNGULA ROAD
+--- 121
y T
MATERIALS UTILIZATION DIAGRAM Fgure R-Z
NAT A - KAZ UN GULA ROAD
07 2 230K300 220 220 232 252
I 3 3 2
MATERIALS UTILIZATION DIAGRAM Figure 2-3
itLT-m
CHOBE RIVER BY-PASS ROAD 02__ Q___ 0 60 40 - 0 50 0 i
-F-CEL
-Tl J-II II
MATERIALS UTILIZATION DIAGRAM Figure B-4
3 SIEVE ANALYSIS SMI~ia VIII
IY UN In~ VI STAISRS SIEVE NUMBfh SUE9 - usuLguNuus O-- aoIiUl- I1
11I a to to 0 i oIIIa lf I
II
SN Cu ye B
II N
o
i B _ ___~ N II 1 l s - Curi e At-
I 2 I a 6 4 2 i5 4 3 2 a -
GRAIN I IZE MILTERS
SILT AND CLAY SOILS GRAVEL SAND
I NUMBE1RSAMPLE DEPTH LL KIE IPTIONIELEV P1 ECIT
A Composit 38 19 CrusherAverage Runof 192 samples
B Composit 33 17 Surface Course Blend asAverage of 236 samples placed
MDD 1960 kgm Los Angeles Abrasion = 42 Average Blend Added 15=
REPUBLIC OF BOTSWANA TI PPETTS-ASSETT-NcCAIThY-STRATTOU MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY BOTSWANA-ZAMBIA GRAIN SIZE DISTRIBUTION BY DmArTE Q76HIGHWAY j PIT 2A DOi FIGURE B-5
E ANLYSISSIEVE NALYSIS NI
OPEING - In jS PhIMS-SEVE iNRh3EN son - MILLIMETER
V11 6plusmn SSIEVE
6 i S 0-4 0 10 miUS) 3055 3 001mesa a
9 I I I - -
Crye B
S bull
1TCrii INN20 1 e A- NI deg I FIK 46591 2 a045 4 2 1115 5 2 6
GRIISZ IN MILLIMETERS
COACE iE NtIUM FI SILT AD CLAY SOILSGRAVEL SAND
5r IBSAMPLE DEPTH ELEV LLP1
A Composite 28 10 Crusher Run Average of 229 samples
B Composite 28 11 Surface Course Blend as Placed Average of 58 samples
2050 kgm3 Averaoe Blend Added shy
TIPPETTS-ASETT-NCCARTIY-STATTONREPUBLIC OF BOTSWANA NEW YORK NY
MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS
BRAIN SIZE DISTRIBUTION BY NCZ jAATE9 876BOTSWANA-ZAMBIA
HIGHWAY PIT 14 amp 14A OWN FIGURE B-6
i
S ANALYSIS 01 ANALYSIS
SIEVE - n -IIII- SIZ-MII- - IN i
It a s 1
Ue a -- e B
- 1 -I-[_I - I I I
6l51 10 8 $514 1 O is 05I I 21 8GANSZNILMTR OA RE Filo 9OA-1i 1DI UM F log S ILT AND CLAY SO ILS
GRAVEL nSAND
E--l I UNEASMPLEDEPlTH ELEV LL P1 KWKIPTION
A Composite 36 19 Crusher Run
Average of 116 Samples
B Composite 36 15 Surface Course Blend Average of 138 samples
H GHWA E SA 18 SILT ANDURCLA-SIL
3kgm Los Angeles Abrasion 28
Av agau Pnd AAd = 907 ITI UETT$-ABBTT-NcentcentARTNY-STRATTON
NEW YORK NY
REPUBLIC OF BOTSWANA
MINISTRY OF WORKS amp COM24UNICATIONSIT NINEERS1
I I MGIELI7 I 1 8AIIGIWAE
I
4
SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU
V 1 Oe 001l
- -r--I-I -- I
S E- -IN S
KI zz7llfl$zIIIti z I
low560
20
2
IGRAIN SIZE IN MILLIMETERS
COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS
GRAVEL SAND
SAMP DEPTH ELEV L P1 0NBERIIPTI
A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples
B Composit( 28 13 Surface Course Blend as Placed
Average of 85 samples
Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA
REPUBLIC OF BOTSWANA TI EfTTS-AIETT-NCARTY-STRATTOi ITTqTPI yen O WOVQ A n rn WTraTTn~lz ENGINEERS NEW YOlK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8
-D IUR IB
II SIEVE ANALYIIS 1411 I LYIlMll
[urn $11min - I I ITUSE IVV I - mampINimums1 -l0 n 001
a1 i 4 is s 0 aL w I 2 0665S a a 4 i 0i
-7sl
96---
I RI IE IN M IEER
CfliEI FIN g o au SIT SILFIN M40 5C o432 14593 ry B6
ver 7 samples
NUMBE NERPI
Ay I GRAIN SIZE IN MILLIMETR
5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND
A Q A- Aii dd d~A
IMUBEIRIIIIPIi
3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables
B Composit 26 13 Surface Course BlendU as Placed
Average of 79 samples
AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =
REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9
SIEVE ANALYSIS IMmv na awLYoia
SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I
I- 01 001
e---__
Ir1 -NIP_]
20
OA
$05 9 2
E
I
86543
I
7tN
2 1 65
_OAlEED t
5 2
FN
I
GRAIN SIZE IN MILLIMETERS
1 111I
NU BE GRAVEL
COARSE
I
MEDIUM
I SAND
FSILT AND CLAY SOILS
SAMPLE4 DEP EEY 1 SCBI1PTIORI
A
B
Composite
Composite
38
26
17
13
Crusher Run Basaltic Aggregate
Average of 176 samples
Surface Course Blend -s Placed Average of 58 samples
Average MDD = 2135 kgm Los Angeles Abrasion = 38
Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY
WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971
3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10
SIEVE ANIALYSIS lNVINI1111 ANALYSIS
I EV OPE IN - INI8 TOSIIEENN1-MLII
I
I - - i ii 0
I GRI SIZEto N OILS 1
I ANDLI IS
G VELIZE I
IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL
-APL ESN
DEPTH ELEY LL PI DESCRIPTIONNUSMBE
3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples
B Composite 26 13 Surface Course Blend as Placed Average of 58 samples
Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34
Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY
BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11
___ I
SIEVE ANALYSIS W11 ANKEm SIS
SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS
01 001
sodego
i i
U Ae
6 559 2 a65 3 2 1 6532 S
II GRAIN SIZE INMILLIMETERS
=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL
GRAVEL SN
I SAMPE DEPTH ELEV LL P)S DESCRIPTION
A omposite 28 10 Crusher Run
SAverage of 72 samples
B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples
Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20
REPUBLICUINISTRY 0OF OF
BOTSWANA WORKS amp COMMUNIGTIONS
TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12
I
SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM
-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U
I _
I1li
Ia _ Cu ve
N IC A11
IQI II
1 IG S IIIMETE
I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND
SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION
A Composite 34 15 Crusher Run Average of 74 samples
B Composite 29 12 Surface Course Blend as Placed
Average of 42 samples
MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15
REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA
ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N
NEW sy cKA
YORK NYT E-2 5 1 7 7
HIGHWAY PIT 32A Mwe FIGURE B-13
I I I I I I I I
APPENDIX C
I WATER WELL LOCATIONS
I I I I I I I I I
APPENDIX C WATER WELL LOCATIONS
WELL NO 3
Location Km 171 Lt of centerline 200 meters
Drill - 6 x 392
Ream - 8 x 92
Case - 6 x 84
Test - 24 Hours - 276
Pump 6000 G P H
Total depth - 392
Pumped at 150
24 Hr Drawdown - 3
Water Good
WELL NO 4
Location Km 175 - Lt of centerline 100 meters
Drill - 6 x 380
Ream - 8 x 82
Case - 7 x 82
Test - 276
Pump 1800 G P H
Total depth - 380
Pumped at 200
Drawdown 24 Hr - 100
Water Good
WELL NO 5 (Govt No 2436
Location Km 178 - Lt of centerline 115 meters
Test -276
Pump - 1400 G P H
Total depth - 160
Pumped at 140
24 Hr Drawdown - 60
Water Good C-1
WELL NO 6
Location Km 183 - Lt of centerline 60 meters
Drill - 6 x 436
Ream - 8 x 86
Case - 7 x 86
Test - 276
Pump - 500 G P H
Total depth - 436
Pumped at 250
24 Hr Drawdown - 150
Water Good
WELL NO 7 - (Govt No 2435)
Location Km 189 - Rt of centerline 100 meters
Clean amp Test
Pump - 6000 G P H
Pumped at 140
24 Hr Drawdown - 10
Water Good
WELL NO 14
Location Km 252 - Lt of centerline 100 meters
Drill - 6 x 250
Ream - 8 x 53
Case - 6 x 53
Test - 276
Pump - 6000 G P H
Total depth - 250
Pumped at 150
24 Hr Drawdown - 6
Water Good
C-2
WELL AT KM 256 MAINTENANCE FACILITY NO 3
Location Km 256 - Lt of centerline 200 meters
Depth - 100 feet
Water Rest Level - 42 feet
Depth Pump Set - 70 feet
24 Hr Test - 1800 G P H
WELL NO 15
Location Km 245 - Rt of centerline 40 meters
Drill - 6 x 260
Ream - 8 x 54
Case - 54
Test -276
Pump - 1500 G P H
Total depth - 260
Pumped at 200
24 Hr Drawdown - 140
Water Good
WELL NO 16 Location Km 236 -Rt of centerline 30 meters
Drill - 6 x 250
Ream - 8 x 22
Case - 6 x 22
Test - 276
Pump -6000 G P H
Total depth - 288
Pumped at 150
24 Hr Drawdown - 10
Water Good
C-3
WELL NO 17
Location Km 224 - Rt of centerline 30 meters
Drill - 10 x 89
Case - 8 x 85
Drill- 8x 43
Drill - 6 x 38
Case -6 x 132
Test - 276
Pump -2000 G P H
Total Depth - 170
Pumped at 100
24 Hr Drawdown - 11
Water Good
WELL NO 18
Location Km 217 - Lt of centerline 200 meters
Drill -i0 x 70
Case - 7 x 70
Drill - 7 x 52
Drill - 6 x 88
Case - 6 x 122
Test - 276
Pump 2400 G P H
Total depth - 210
Pumped at 200
24 Hr Drawdown - 140
Water Good
C-4
WELL NO 19
Location Km 213 - Lt of centerline 100 meters
Drill - 10 x 44
Case - 8 x 40
Drill - 8 x 76
Drill 6 x 130
Case - 6 x 120
Test - 276
Pump - 6000 G P H
Total depth - 210
Pumped at 60
24 Hr Drawdown - 10
Water Good
WELL NO 20
Location Km 143 - Rt of centerline 100 meters
Drill - 10 x 240
Case - 7 x 220
Drill -6 x 378
Case - 6 x 240
Case - 5 x 240
Test - 276
Pump -1500 G P H
Total depth - 618
Pumped at 460
24 Hr Drawdown - 105
Water slightly salty to taste but drinkable
C-5
WELL NO 23
Location Km 139 - Lt of centerline 100 meters
Drill - 12 x 290
Place amp Extract Case - 10 x 290
Drill - 8 x 30
Drill - 6 x 40
Case - 8 x 290
Case - 6 x 320
Test - 276
Pump - 1200 G P H
Total depth - 360
Pumped at 330
24 Hr Drawdown - 120
Water salty
WELL NO 24
Location Km 135 - Lt of centerline 500 meters
Drill - 12 x 270
Drill - 10 x 10
Case - 10 x 270
Drill -8 x 30
Case - 8 x 290
Case -6 x 310
Case - 5 x 320
Test -276
Pump -4000 +G P H
Total depth - 320
Pumped at 270
24 Hr Drawdown - 2
Water Salty
C-6
I
5
WELL KM 205 MAINTENANCE FACILITY NO 2
Location Km 105 - Lt of centerline 40 meters
Depth - 302 feet
~ Water Rest Level - 82 feet
Depth Pump Set - 150 feet
48 Hr Test - 3000 + G P H
WELL NO 26
Location Km 82 - Lt of centerline 100 meters
Drill - 12 x 145
5 -8 x145
Drill - 8 x 23
-Case
I Drill - 7 x 10
Case - 7 x 168
I Case - 6 x178
Test - 276
Pump - 1200 G P H
Total depth - 306
I Pumped at 140
24 Hr Drawdown - 35
I Water Good
C
I 0-7
WELL NO 27
Location Km 77 - Lt of centerline 100 meters
Drill - 12 x 174
Install amp Extract Case - 10 x 174
Case - 8 x 174
Drill - 9 x 68
Drill - 8 x 64
Case - 7 x 242
Case - 6 x 306
Test - 276
Pump - 4000 + G P H
Total Depth - 306
Pumpe at 240
24 Hr Drawdown - 0
Water Good
WELL NO 28- (Govt No 2465)
Location Km 63 - Rt of centerline 100 meters
Clean amp Extract Case - 300
Ream - 10 x 98
Ream - 8x 27
Ream - 6 x 12
Case - 8 x 98
Case - 6 x 125
Test - 276
Pump - 1000 + G P H
Total depth - 137
Pumped at 130
24 Hr Drawdown - 33
Water Good
C-8
WELL NO 30
Location Km 47 - Rt of centerline 400 meters
Drill - 12 x 132
Case - 10 x 89
Install amp Extract Case - 12 x 43
Drill - 10 x 117
Case - 7 x 242
Drill - 6 x 183
Install amp Extract Case - 6 x 408
Test - 276
Pump - 1000 G P H
Total depth - 408
Pumped at 160
24 Hr Drawdown - 77
Water Salty
WELL NO 31
- Lt of centerline 200 metersLocation Km 44
Drill - 12 x 110
Case - 10 x 100
Drill - 10 x 142
Case 8 x 142
Drill - 8 x 250
Case 7 x 392
Drill - 6 x 78
Test - 276
Pump - 3000 G P H
Total depth - 502
Pumped at 160
24 Hr Drawdown - 44
Water Salty
C-9
WELL NO 32
Location Km 42 - Lt of centerline 100 meters
Drill - 12 x 108
Case - 10 x 108
Drill - 10 x 212
Drill - 8 x 120
Case - 6 x 340
Case - 8 x 182
Test - 276
Pump - 3000 + G P H
Total depth - 448
Pumped at 160
24 Hr Drawdown - 20
Water Salty
WELL NO 34
Location Km 35 - Lt of centerline 200 meters
Drill - 12 x 230
Install amp Extract Case - 10 x 230
Drill - 8 x 30
Case -6 x 260
Drill - 6 x 160
Case -5 x 324
Case - 8 x 20
Test - 276
Pump -1000 + G P H
Total depth - 420
Pumped at 150
24 Hr Drawdown - 100
Water Salty
C-10
WELL NO 36
Location Km 7 N E along old track from Km 63
Drill - 12 x 180
Case - 10 x 180
Drill - 10 x 231
Case - 8 x 211
Drill- 8x 254
Case - 6 x 245
Test -276
Pump -4000 + G P H
Total depth - 265
Pumped at 180
24 Hr Drawdown - 0
Water Good
C-11
I 3 I 1 I I I I B j APPENDDC D
SYNOPSIS 0 KEY CORRESPONDENCE
3 DURING CONSTRUCTION
I pound I I I 1 I I
On September 1 1973 the Contractor confirmed the
estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts
On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project
On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be
obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated
On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine
On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation
On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension
On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension
On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval
On October 15 1973 the Engineer returned the construction progress schedule for correction
On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim
D-I
On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor
On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project
On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25
On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter
On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents
On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract
On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised
On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading
On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule
On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request
On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period
D-2
On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report
On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material
On August 19 1974 the Contractor submitted an updated construction progress schedule for approval
On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases
On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor
On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor
On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project
On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course
On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country
On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course
On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions
On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule
On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress
D-3
On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract
On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana
On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor
On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion
On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations
On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases
On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season
On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees
On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections
On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project
On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course
On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project
On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract
D-4
October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request
On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor
On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620
On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project
On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y
completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense
On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted
On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project
On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim
On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic
On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor
On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976
D-5
On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time
On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares
On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material
On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500
On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor
On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula
On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana
OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected
On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road
On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road
Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10
On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued
On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced
On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091
On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091
Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued
D-6
I I IUUU U U UU I U
E PROJECT PHOTOGRAPHS
I IIIU U I
I Crushing Plants Surface Course
Pit 2A
Pug Mill Blending Surface Course
Pit 25A
II Surface Course
Pit 25A
UURYPTOERTOSE Pug Mil Blending
Road Reserve Bush Clearing
Km 242
U
Embankment Construction Km 287
IN
Road Construction Water Supply
Km 189
ROADWAY UNDER CONSTRUTION
II
E-2
Stockpiling Material Base Course
Special Embankment Construction Km 232
Watering of Embankment Km 257
ROADWAY UNDER CONSTRUCTION E-3
Culvert Assembly
Twin Culvert with Sand-Cement Pitching
Multiple Culverts with Sand-Cement Pitching
CULVERT INSTALLATIONS E- 4
AT Km 25
AT Km 194
Emergency Landing Strip Kra 2605
FINISHED ROADWAY E- 5
AT Km 286
AT Chobe By-Pass Junction Km 297
I Chobe By-Pass Road Near Ngoma Bridge
E-6FINISHED ROADWAY
mi -blN mN -m~ m ml m min nmlW arm~ nn- a a a a1 al a
TABLE 4 (Continued) Sheet 3 of 4
Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount No Description
812 Supply Nestable Galvanized Corrugated
Metal Pipe 18 inches in diameter 14 USSG
PIPE
END SECTIONS
901 Construct Maintenance Facility Complex
902 Water Pump
903 Contractors Expenses and Profit on Prime Cost Item 902
1001 Road Signs
1002 Guide Posts
1003 Kilometre Posts
Dayworks
TOTAL-SCHEDULE OF QUANTITIES
a
0) CO I CO 2
TAMS Staff Hotel Accommodation
Air Conditioners TCN Houses
CO 3
CO 4
NA (Progress Payment Permanent Material)
Additional TCN Housing
SUB-TOTAL
CO 5 POL Escalation Cost
CO 6 POL Escalation Cost
CO 7 POL Escalation Cost
SUB-TOTAL
LESS OVERPAYMENT
TOTAL POL ESCALATION COST
CO 8 Interim Allowance (Wage)
CO 9 Wage Escalation Cost
SUB-TOTAL
LESS OVERPAYMENT
TOTAL WAGE ESCALATION COST
Measure
LM
Each
Lump Sum
PC Sum
25
Each
Each
Each
As directed
Each
Final Quantities
238 LM
0 each
98
284 each
900 each
182 each
100
100
100
NA
6
100
100
100
100
100
US $
3400
6700
8520
As Billed
650000
As Shown
As Shown
As Shown
As Shown
As Shown
RandPula
900000
1000
1450
1500
130100
US $
809200
-0-
13014800
-0-
-0-
2419680
-0-
-0-
5999421
882317486
376898
3900000
4276898
RandPula
-0shy
-0shy
7308700
255223
63806
284000
1305000
273000
-0shy
310970881
842138
5307
780600
1628045
575601
1815344
77277517
79668462
1661539
78006923
297802
16022556
16320358
125720
16194638
TABLE 4 (Continued)
Item No Description
Unit of Measure
Total Revised Final Quantities
Contract Unit Price US $ RandPula
Sheet 4 of 4
Final Revised Contract Amount US $ RandPula
CO 10
CO 11
CO 12
Road Reserve cleared way Chobe River By-pass (included under items 302 303 and 304)
Importation Additional Sheeps foot roller (included under item 101)
Minor realignment of roadway at Nata
TOTAL CONSTRUCTION COST
100
100
100
886594384 406800487
ishy
I I I I I I I I
APPENDIX A
I CONSTRUCTION EQUIPMENT
I I I I U I I I I I
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT
I Descqription
2 Chevrolet Impala Sedan
5 jeep-Wagoner
7 jeep-Wagoner
1 Chevrolet Vega
23 Chevrolet Pickup
19 Mack Tractor (T675-8W)
2 Chevrolet Flat Bed
5 Mack-Platform Stake (T426-3500)
1 Mack-2000 Gal Fuel (T426-3500)
4 Mack Dump Truck 10 cy
2 Chevrolet Dump Truck 5 cy
1 Mack-Birmingham Tandum Lowboy Trailer
2 Mack-Gindy 25 Ton Tandum Semi Trailer
8 Heil- P3S 303 cy Dump Trailer
I 7 Fruehauf-TEO-F3-R 10000 Gal Tanker
5 Fruehauf-TEO-F2-R 6500 Gal Tanker
5 Fruehauf-Tandum Axle Dolly
2 Barko 14000 Telescopic Crane
6 Cobey 1062 Wagon Trailer
1 Cedarapids 443 Commander Crusher
1 Peerless Portable Base Stabilisation Plant
2 Atlantic International Water Treatment Plant
6 Caterpillar 631-B TractorS631-B Scraper
7 Caterpillar D8-H Dozer
2 4
Caterpillar D9- Dozer Caterpillar D6-C Dozer
2 Caterpillar 12-F Grader
5 Caterpillar 14-E Grader
U A-i
1
I
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (Cont)
Quantity
4
1
4
11Raygo
1
S1 2
ICaterpillar-200KW 3
1
1
1
1
1
3
2 2
2
I
1
2
2
I
1 2
8
1
j 8
1 4
9
1
Description
Caterpillar 966 Loader
Trojan 4000 Loader
Raygo 400A Compactor Vibrator
410A Compactor Vibrator
Vibro Plus Vibrating Sheepsfoot Roller
Bros 10000 Compactor
Bros 6000 Compactor
Generator Caterpillar - 125KW Generator
Little Reddevil Generator
Kholer 3KW Generator
Kholer 2KW Generator
Detroit Diesel Generator (2D-32)
Kholer Generator (5CKM61)
Hobart GR-3 03 Welders w trolley
Worthington 365 Compressor Worthington 160 Compressor
Kellypower Tamper
John Deere 2700 Disc Harrow10 Cut
ohn Deere 1630 Disc Harrow 7 Cut
Worthington WS-55 Rock Drill
Alemite Portable Service Station
Graco Lube Ranger
Worthington Wagon Drill
Layne Bowler Deep Well Pump
Layne Bowler Pump only
4 Centrifugal Pump
2 Centrifugal Pump
Columbian Steel Water Tanks 20000 US Gal
A-2
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (contd)
Quanti
1I Description
Caterpillar Parallel Shank Ripper
2 Fleco Blade Rake
4 Chainsaw
3 Gardner-Denver Compressor
5 Aerotron Radio Transmitters $1203
7 Aerotron Radio Receivers $2 10
16 SSB Radio Transceivers $1340
8 Auxilliary Radio Transceivers $1340
2 Cevy 4 x 4 Pickup Truck 8 Chevy 2 x 4 Pickup Truck
1 L B Smith Cone Crusher
2 Ford 4 x 4 (1164-14C Tractor)
2 Bros Sheepsfoot Roller
1 Hyster Towed Vibratory Compactor
During 1975 and 1976 the Contractor added the following listed equipment
1 Caterpillar No 14 Motor Grader
1 Caterpillar No 966 Loader
1 Trojan No 4000 Loader
1 Cone Crushing Plant 3 ft Standard Fine Bowl with 4 Deck Screens
4 Conveyor Units
A-3
I 1 I I I U I I
APPENDIX B
I I SOILS AND MATERIALS
I I 1 I I I I I 1
APPENDIX B
SOILS AND MATERIALS
(a) General
The road pavement is composed basically of two layers the surface
course and base course overlaying a compacted subgrade or embankment
The sources and volumes of the surface course and base course materials
are indicated in the Materials Utilization Diagrams included as Figures B-i
through B-4
(b) Subgrade
The subgrade soil consists primarily of aeolian fine sand except
for approximately 36 kilometers of the road for which the subgrade is a pan material consisting of clay In the pan areas special 1 Om thick
embankments were constructed with plasticity and fineness control of material
The subgrade and embankment soils were compacted to a minimum of 90
of modified AASHTO compaction The measured mean relative compaction
obtained immediately after compaction of the subgrade was 935 of the modified AASHTO maximum density
(c) Base Course
The majority of the base course materials are derived from aeolian deposits ie fine sand with a trace to some silty clay The
remaining base bourse approximately 15 of the total was obtained from pits having a large component of gravel The 15cm thick base
course is bank run or blended material for which the amounts of fines
and plasticity were controlled The base course materials were obtained from 123 base borrow pits and compacted to a minimum 95 of modified AASHTO density The measured mean relative compaction
directly after construction was 96 of the modified AASHTO maximum
density
(d) Surface Course
The 15cm thick surface course is well graded sandy gravel with
some silty clay fraction The materials for the road segment from
Kilometer 0+000 to Kilometer 173+000 are derived from calcrete deposits
while the materials for the remaining portion are derived from weathered
3-1
bedrock The surface course has controlled gradation plasticity and
durability to obtain sufficient strength to reduce ravelling to a minimum
particularly during the dry season and to resist the wear of traffic
Surface course materials have been obtained by screening crushing
and blending materials from 9 borrow areas and were compacted to a
minimum of 98 of modified AASUTO maximum dry density The comshy
posite properties for each borrow pit are indicated in the Average
Gradation Ourvesincluded as Figures B-5 through B-13 Directly
after construction of the surface course the measured mean relative
compaction was 100 of the modified AASHTO maximum density
B-2
N A TA K A ZUN GU LA RO0A D 70 033 90 CC
00 00 0 0 0+I 03- 30L K
0 I I
M 3 100 0002L [2
_
MATERIALS UTILIZATION DIAGRAM Fiure -I
NATA - KAZUNGULA ROAD
+--- 121
y T
MATERIALS UTILIZATION DIAGRAM Fgure R-Z
NAT A - KAZ UN GULA ROAD
07 2 230K300 220 220 232 252
I 3 3 2
MATERIALS UTILIZATION DIAGRAM Figure 2-3
itLT-m
CHOBE RIVER BY-PASS ROAD 02__ Q___ 0 60 40 - 0 50 0 i
-F-CEL
-Tl J-II II
MATERIALS UTILIZATION DIAGRAM Figure B-4
3 SIEVE ANALYSIS SMI~ia VIII
IY UN In~ VI STAISRS SIEVE NUMBfh SUE9 - usuLguNuus O-- aoIiUl- I1
11I a to to 0 i oIIIa lf I
II
SN Cu ye B
II N
o
i B _ ___~ N II 1 l s - Curi e At-
I 2 I a 6 4 2 i5 4 3 2 a -
GRAIN I IZE MILTERS
SILT AND CLAY SOILS GRAVEL SAND
I NUMBE1RSAMPLE DEPTH LL KIE IPTIONIELEV P1 ECIT
A Composit 38 19 CrusherAverage Runof 192 samples
B Composit 33 17 Surface Course Blend asAverage of 236 samples placed
MDD 1960 kgm Los Angeles Abrasion = 42 Average Blend Added 15=
REPUBLIC OF BOTSWANA TI PPETTS-ASSETT-NcCAIThY-STRATTOU MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY BOTSWANA-ZAMBIA GRAIN SIZE DISTRIBUTION BY DmArTE Q76HIGHWAY j PIT 2A DOi FIGURE B-5
E ANLYSISSIEVE NALYSIS NI
OPEING - In jS PhIMS-SEVE iNRh3EN son - MILLIMETER
V11 6plusmn SSIEVE
6 i S 0-4 0 10 miUS) 3055 3 001mesa a
9 I I I - -
Crye B
S bull
1TCrii INN20 1 e A- NI deg I FIK 46591 2 a045 4 2 1115 5 2 6
GRIISZ IN MILLIMETERS
COACE iE NtIUM FI SILT AD CLAY SOILSGRAVEL SAND
5r IBSAMPLE DEPTH ELEV LLP1
A Composite 28 10 Crusher Run Average of 229 samples
B Composite 28 11 Surface Course Blend as Placed Average of 58 samples
2050 kgm3 Averaoe Blend Added shy
TIPPETTS-ASETT-NCCARTIY-STATTONREPUBLIC OF BOTSWANA NEW YORK NY
MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS
BRAIN SIZE DISTRIBUTION BY NCZ jAATE9 876BOTSWANA-ZAMBIA
HIGHWAY PIT 14 amp 14A OWN FIGURE B-6
i
S ANALYSIS 01 ANALYSIS
SIEVE - n -IIII- SIZ-MII- - IN i
It a s 1
Ue a -- e B
- 1 -I-[_I - I I I
6l51 10 8 $514 1 O is 05I I 21 8GANSZNILMTR OA RE Filo 9OA-1i 1DI UM F log S ILT AND CLAY SO ILS
GRAVEL nSAND
E--l I UNEASMPLEDEPlTH ELEV LL P1 KWKIPTION
A Composite 36 19 Crusher Run
Average of 116 Samples
B Composite 36 15 Surface Course Blend Average of 138 samples
H GHWA E SA 18 SILT ANDURCLA-SIL
3kgm Los Angeles Abrasion 28
Av agau Pnd AAd = 907 ITI UETT$-ABBTT-NcentcentARTNY-STRATTON
NEW YORK NY
REPUBLIC OF BOTSWANA
MINISTRY OF WORKS amp COM24UNICATIONSIT NINEERS1
I I MGIELI7 I 1 8AIIGIWAE
I
4
SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU
V 1 Oe 001l
- -r--I-I -- I
S E- -IN S
KI zz7llfl$zIIIti z I
low560
20
2
IGRAIN SIZE IN MILLIMETERS
COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS
GRAVEL SAND
SAMP DEPTH ELEV L P1 0NBERIIPTI
A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples
B Composit( 28 13 Surface Course Blend as Placed
Average of 85 samples
Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA
REPUBLIC OF BOTSWANA TI EfTTS-AIETT-NCARTY-STRATTOi ITTqTPI yen O WOVQ A n rn WTraTTn~lz ENGINEERS NEW YOlK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8
-D IUR IB
II SIEVE ANALYIIS 1411 I LYIlMll
[urn $11min - I I ITUSE IVV I - mampINimums1 -l0 n 001
a1 i 4 is s 0 aL w I 2 0665S a a 4 i 0i
-7sl
96---
I RI IE IN M IEER
CfliEI FIN g o au SIT SILFIN M40 5C o432 14593 ry B6
ver 7 samples
NUMBE NERPI
Ay I GRAIN SIZE IN MILLIMETR
5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND
A Q A- Aii dd d~A
IMUBEIRIIIIPIi
3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables
B Composit 26 13 Surface Course BlendU as Placed
Average of 79 samples
AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =
REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9
SIEVE ANALYSIS IMmv na awLYoia
SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I
I- 01 001
e---__
Ir1 -NIP_]
20
OA
$05 9 2
E
I
86543
I
7tN
2 1 65
_OAlEED t
5 2
FN
I
GRAIN SIZE IN MILLIMETERS
1 111I
NU BE GRAVEL
COARSE
I
MEDIUM
I SAND
FSILT AND CLAY SOILS
SAMPLE4 DEP EEY 1 SCBI1PTIORI
A
B
Composite
Composite
38
26
17
13
Crusher Run Basaltic Aggregate
Average of 176 samples
Surface Course Blend -s Placed Average of 58 samples
Average MDD = 2135 kgm Los Angeles Abrasion = 38
Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY
WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971
3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10
SIEVE ANIALYSIS lNVINI1111 ANALYSIS
I EV OPE IN - INI8 TOSIIEENN1-MLII
I
I - - i ii 0
I GRI SIZEto N OILS 1
I ANDLI IS
G VELIZE I
IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL
-APL ESN
DEPTH ELEY LL PI DESCRIPTIONNUSMBE
3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples
B Composite 26 13 Surface Course Blend as Placed Average of 58 samples
Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34
Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY
BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11
___ I
SIEVE ANALYSIS W11 ANKEm SIS
SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS
01 001
sodego
i i
U Ae
6 559 2 a65 3 2 1 6532 S
II GRAIN SIZE INMILLIMETERS
=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL
GRAVEL SN
I SAMPE DEPTH ELEV LL P)S DESCRIPTION
A omposite 28 10 Crusher Run
SAverage of 72 samples
B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples
Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20
REPUBLICUINISTRY 0OF OF
BOTSWANA WORKS amp COMMUNIGTIONS
TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12
I
SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM
-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U
I _
I1li
Ia _ Cu ve
N IC A11
IQI II
1 IG S IIIMETE
I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND
SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION
A Composite 34 15 Crusher Run Average of 74 samples
B Composite 29 12 Surface Course Blend as Placed
Average of 42 samples
MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15
REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA
ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N
NEW sy cKA
YORK NYT E-2 5 1 7 7
HIGHWAY PIT 32A Mwe FIGURE B-13
I I I I I I I I
APPENDIX C
I WATER WELL LOCATIONS
I I I I I I I I I
APPENDIX C WATER WELL LOCATIONS
WELL NO 3
Location Km 171 Lt of centerline 200 meters
Drill - 6 x 392
Ream - 8 x 92
Case - 6 x 84
Test - 24 Hours - 276
Pump 6000 G P H
Total depth - 392
Pumped at 150
24 Hr Drawdown - 3
Water Good
WELL NO 4
Location Km 175 - Lt of centerline 100 meters
Drill - 6 x 380
Ream - 8 x 82
Case - 7 x 82
Test - 276
Pump 1800 G P H
Total depth - 380
Pumped at 200
Drawdown 24 Hr - 100
Water Good
WELL NO 5 (Govt No 2436
Location Km 178 - Lt of centerline 115 meters
Test -276
Pump - 1400 G P H
Total depth - 160
Pumped at 140
24 Hr Drawdown - 60
Water Good C-1
WELL NO 6
Location Km 183 - Lt of centerline 60 meters
Drill - 6 x 436
Ream - 8 x 86
Case - 7 x 86
Test - 276
Pump - 500 G P H
Total depth - 436
Pumped at 250
24 Hr Drawdown - 150
Water Good
WELL NO 7 - (Govt No 2435)
Location Km 189 - Rt of centerline 100 meters
Clean amp Test
Pump - 6000 G P H
Pumped at 140
24 Hr Drawdown - 10
Water Good
WELL NO 14
Location Km 252 - Lt of centerline 100 meters
Drill - 6 x 250
Ream - 8 x 53
Case - 6 x 53
Test - 276
Pump - 6000 G P H
Total depth - 250
Pumped at 150
24 Hr Drawdown - 6
Water Good
C-2
WELL AT KM 256 MAINTENANCE FACILITY NO 3
Location Km 256 - Lt of centerline 200 meters
Depth - 100 feet
Water Rest Level - 42 feet
Depth Pump Set - 70 feet
24 Hr Test - 1800 G P H
WELL NO 15
Location Km 245 - Rt of centerline 40 meters
Drill - 6 x 260
Ream - 8 x 54
Case - 54
Test -276
Pump - 1500 G P H
Total depth - 260
Pumped at 200
24 Hr Drawdown - 140
Water Good
WELL NO 16 Location Km 236 -Rt of centerline 30 meters
Drill - 6 x 250
Ream - 8 x 22
Case - 6 x 22
Test - 276
Pump -6000 G P H
Total depth - 288
Pumped at 150
24 Hr Drawdown - 10
Water Good
C-3
WELL NO 17
Location Km 224 - Rt of centerline 30 meters
Drill - 10 x 89
Case - 8 x 85
Drill- 8x 43
Drill - 6 x 38
Case -6 x 132
Test - 276
Pump -2000 G P H
Total Depth - 170
Pumped at 100
24 Hr Drawdown - 11
Water Good
WELL NO 18
Location Km 217 - Lt of centerline 200 meters
Drill -i0 x 70
Case - 7 x 70
Drill - 7 x 52
Drill - 6 x 88
Case - 6 x 122
Test - 276
Pump 2400 G P H
Total depth - 210
Pumped at 200
24 Hr Drawdown - 140
Water Good
C-4
WELL NO 19
Location Km 213 - Lt of centerline 100 meters
Drill - 10 x 44
Case - 8 x 40
Drill - 8 x 76
Drill 6 x 130
Case - 6 x 120
Test - 276
Pump - 6000 G P H
Total depth - 210
Pumped at 60
24 Hr Drawdown - 10
Water Good
WELL NO 20
Location Km 143 - Rt of centerline 100 meters
Drill - 10 x 240
Case - 7 x 220
Drill -6 x 378
Case - 6 x 240
Case - 5 x 240
Test - 276
Pump -1500 G P H
Total depth - 618
Pumped at 460
24 Hr Drawdown - 105
Water slightly salty to taste but drinkable
C-5
WELL NO 23
Location Km 139 - Lt of centerline 100 meters
Drill - 12 x 290
Place amp Extract Case - 10 x 290
Drill - 8 x 30
Drill - 6 x 40
Case - 8 x 290
Case - 6 x 320
Test - 276
Pump - 1200 G P H
Total depth - 360
Pumped at 330
24 Hr Drawdown - 120
Water salty
WELL NO 24
Location Km 135 - Lt of centerline 500 meters
Drill - 12 x 270
Drill - 10 x 10
Case - 10 x 270
Drill -8 x 30
Case - 8 x 290
Case -6 x 310
Case - 5 x 320
Test -276
Pump -4000 +G P H
Total depth - 320
Pumped at 270
24 Hr Drawdown - 2
Water Salty
C-6
I
5
WELL KM 205 MAINTENANCE FACILITY NO 2
Location Km 105 - Lt of centerline 40 meters
Depth - 302 feet
~ Water Rest Level - 82 feet
Depth Pump Set - 150 feet
48 Hr Test - 3000 + G P H
WELL NO 26
Location Km 82 - Lt of centerline 100 meters
Drill - 12 x 145
5 -8 x145
Drill - 8 x 23
-Case
I Drill - 7 x 10
Case - 7 x 168
I Case - 6 x178
Test - 276
Pump - 1200 G P H
Total depth - 306
I Pumped at 140
24 Hr Drawdown - 35
I Water Good
C
I 0-7
WELL NO 27
Location Km 77 - Lt of centerline 100 meters
Drill - 12 x 174
Install amp Extract Case - 10 x 174
Case - 8 x 174
Drill - 9 x 68
Drill - 8 x 64
Case - 7 x 242
Case - 6 x 306
Test - 276
Pump - 4000 + G P H
Total Depth - 306
Pumpe at 240
24 Hr Drawdown - 0
Water Good
WELL NO 28- (Govt No 2465)
Location Km 63 - Rt of centerline 100 meters
Clean amp Extract Case - 300
Ream - 10 x 98
Ream - 8x 27
Ream - 6 x 12
Case - 8 x 98
Case - 6 x 125
Test - 276
Pump - 1000 + G P H
Total depth - 137
Pumped at 130
24 Hr Drawdown - 33
Water Good
C-8
WELL NO 30
Location Km 47 - Rt of centerline 400 meters
Drill - 12 x 132
Case - 10 x 89
Install amp Extract Case - 12 x 43
Drill - 10 x 117
Case - 7 x 242
Drill - 6 x 183
Install amp Extract Case - 6 x 408
Test - 276
Pump - 1000 G P H
Total depth - 408
Pumped at 160
24 Hr Drawdown - 77
Water Salty
WELL NO 31
- Lt of centerline 200 metersLocation Km 44
Drill - 12 x 110
Case - 10 x 100
Drill - 10 x 142
Case 8 x 142
Drill - 8 x 250
Case 7 x 392
Drill - 6 x 78
Test - 276
Pump - 3000 G P H
Total depth - 502
Pumped at 160
24 Hr Drawdown - 44
Water Salty
C-9
WELL NO 32
Location Km 42 - Lt of centerline 100 meters
Drill - 12 x 108
Case - 10 x 108
Drill - 10 x 212
Drill - 8 x 120
Case - 6 x 340
Case - 8 x 182
Test - 276
Pump - 3000 + G P H
Total depth - 448
Pumped at 160
24 Hr Drawdown - 20
Water Salty
WELL NO 34
Location Km 35 - Lt of centerline 200 meters
Drill - 12 x 230
Install amp Extract Case - 10 x 230
Drill - 8 x 30
Case -6 x 260
Drill - 6 x 160
Case -5 x 324
Case - 8 x 20
Test - 276
Pump -1000 + G P H
Total depth - 420
Pumped at 150
24 Hr Drawdown - 100
Water Salty
C-10
WELL NO 36
Location Km 7 N E along old track from Km 63
Drill - 12 x 180
Case - 10 x 180
Drill - 10 x 231
Case - 8 x 211
Drill- 8x 254
Case - 6 x 245
Test -276
Pump -4000 + G P H
Total depth - 265
Pumped at 180
24 Hr Drawdown - 0
Water Good
C-11
I 3 I 1 I I I I B j APPENDDC D
SYNOPSIS 0 KEY CORRESPONDENCE
3 DURING CONSTRUCTION
I pound I I I 1 I I
On September 1 1973 the Contractor confirmed the
estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts
On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project
On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be
obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated
On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine
On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation
On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension
On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension
On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval
On October 15 1973 the Engineer returned the construction progress schedule for correction
On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim
D-I
On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor
On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project
On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25
On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter
On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents
On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract
On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised
On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading
On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule
On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request
On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period
D-2
On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report
On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material
On August 19 1974 the Contractor submitted an updated construction progress schedule for approval
On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases
On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor
On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor
On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project
On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course
On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country
On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course
On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions
On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule
On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress
D-3
On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract
On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana
On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor
On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion
On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations
On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases
On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season
On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees
On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections
On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project
On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course
On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project
On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract
D-4
October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request
On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor
On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620
On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project
On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y
completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense
On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted
On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project
On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim
On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic
On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor
On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976
D-5
On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time
On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares
On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material
On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500
On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor
On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula
On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana
OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected
On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road
On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road
Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10
On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued
On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced
On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091
On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091
Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued
D-6
I I IUUU U U UU I U
E PROJECT PHOTOGRAPHS
I IIIU U I
I Crushing Plants Surface Course
Pit 2A
Pug Mill Blending Surface Course
Pit 25A
II Surface Course
Pit 25A
UURYPTOERTOSE Pug Mil Blending
Road Reserve Bush Clearing
Km 242
U
Embankment Construction Km 287
IN
Road Construction Water Supply
Km 189
ROADWAY UNDER CONSTRUTION
II
E-2
Stockpiling Material Base Course
Special Embankment Construction Km 232
Watering of Embankment Km 257
ROADWAY UNDER CONSTRUCTION E-3
Culvert Assembly
Twin Culvert with Sand-Cement Pitching
Multiple Culverts with Sand-Cement Pitching
CULVERT INSTALLATIONS E- 4
AT Km 25
AT Km 194
Emergency Landing Strip Kra 2605
FINISHED ROADWAY E- 5
AT Km 286
AT Chobe By-Pass Junction Km 297
I Chobe By-Pass Road Near Ngoma Bridge
E-6FINISHED ROADWAY
TABLE 4 (Continued)
Item No Description
Unit of Measure
Total Revised Final Quantities
Contract Unit Price US $ RandPula
Sheet 4 of 4
Final Revised Contract Amount US $ RandPula
CO 10
CO 11
CO 12
Road Reserve cleared way Chobe River By-pass (included under items 302 303 and 304)
Importation Additional Sheeps foot roller (included under item 101)
Minor realignment of roadway at Nata
TOTAL CONSTRUCTION COST
100
100
100
886594384 406800487
ishy
I I I I I I I I
APPENDIX A
I CONSTRUCTION EQUIPMENT
I I I I U I I I I I
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT
I Descqription
2 Chevrolet Impala Sedan
5 jeep-Wagoner
7 jeep-Wagoner
1 Chevrolet Vega
23 Chevrolet Pickup
19 Mack Tractor (T675-8W)
2 Chevrolet Flat Bed
5 Mack-Platform Stake (T426-3500)
1 Mack-2000 Gal Fuel (T426-3500)
4 Mack Dump Truck 10 cy
2 Chevrolet Dump Truck 5 cy
1 Mack-Birmingham Tandum Lowboy Trailer
2 Mack-Gindy 25 Ton Tandum Semi Trailer
8 Heil- P3S 303 cy Dump Trailer
I 7 Fruehauf-TEO-F3-R 10000 Gal Tanker
5 Fruehauf-TEO-F2-R 6500 Gal Tanker
5 Fruehauf-Tandum Axle Dolly
2 Barko 14000 Telescopic Crane
6 Cobey 1062 Wagon Trailer
1 Cedarapids 443 Commander Crusher
1 Peerless Portable Base Stabilisation Plant
2 Atlantic International Water Treatment Plant
6 Caterpillar 631-B TractorS631-B Scraper
7 Caterpillar D8-H Dozer
2 4
Caterpillar D9- Dozer Caterpillar D6-C Dozer
2 Caterpillar 12-F Grader
5 Caterpillar 14-E Grader
U A-i
1
I
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (Cont)
Quantity
4
1
4
11Raygo
1
S1 2
ICaterpillar-200KW 3
1
1
1
1
1
3
2 2
2
I
1
2
2
I
1 2
8
1
j 8
1 4
9
1
Description
Caterpillar 966 Loader
Trojan 4000 Loader
Raygo 400A Compactor Vibrator
410A Compactor Vibrator
Vibro Plus Vibrating Sheepsfoot Roller
Bros 10000 Compactor
Bros 6000 Compactor
Generator Caterpillar - 125KW Generator
Little Reddevil Generator
Kholer 3KW Generator
Kholer 2KW Generator
Detroit Diesel Generator (2D-32)
Kholer Generator (5CKM61)
Hobart GR-3 03 Welders w trolley
Worthington 365 Compressor Worthington 160 Compressor
Kellypower Tamper
John Deere 2700 Disc Harrow10 Cut
ohn Deere 1630 Disc Harrow 7 Cut
Worthington WS-55 Rock Drill
Alemite Portable Service Station
Graco Lube Ranger
Worthington Wagon Drill
Layne Bowler Deep Well Pump
Layne Bowler Pump only
4 Centrifugal Pump
2 Centrifugal Pump
Columbian Steel Water Tanks 20000 US Gal
A-2
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (contd)
Quanti
1I Description
Caterpillar Parallel Shank Ripper
2 Fleco Blade Rake
4 Chainsaw
3 Gardner-Denver Compressor
5 Aerotron Radio Transmitters $1203
7 Aerotron Radio Receivers $2 10
16 SSB Radio Transceivers $1340
8 Auxilliary Radio Transceivers $1340
2 Cevy 4 x 4 Pickup Truck 8 Chevy 2 x 4 Pickup Truck
1 L B Smith Cone Crusher
2 Ford 4 x 4 (1164-14C Tractor)
2 Bros Sheepsfoot Roller
1 Hyster Towed Vibratory Compactor
During 1975 and 1976 the Contractor added the following listed equipment
1 Caterpillar No 14 Motor Grader
1 Caterpillar No 966 Loader
1 Trojan No 4000 Loader
1 Cone Crushing Plant 3 ft Standard Fine Bowl with 4 Deck Screens
4 Conveyor Units
A-3
I 1 I I I U I I
APPENDIX B
I I SOILS AND MATERIALS
I I 1 I I I I I 1
APPENDIX B
SOILS AND MATERIALS
(a) General
The road pavement is composed basically of two layers the surface
course and base course overlaying a compacted subgrade or embankment
The sources and volumes of the surface course and base course materials
are indicated in the Materials Utilization Diagrams included as Figures B-i
through B-4
(b) Subgrade
The subgrade soil consists primarily of aeolian fine sand except
for approximately 36 kilometers of the road for which the subgrade is a pan material consisting of clay In the pan areas special 1 Om thick
embankments were constructed with plasticity and fineness control of material
The subgrade and embankment soils were compacted to a minimum of 90
of modified AASHTO compaction The measured mean relative compaction
obtained immediately after compaction of the subgrade was 935 of the modified AASHTO maximum density
(c) Base Course
The majority of the base course materials are derived from aeolian deposits ie fine sand with a trace to some silty clay The
remaining base bourse approximately 15 of the total was obtained from pits having a large component of gravel The 15cm thick base
course is bank run or blended material for which the amounts of fines
and plasticity were controlled The base course materials were obtained from 123 base borrow pits and compacted to a minimum 95 of modified AASHTO density The measured mean relative compaction
directly after construction was 96 of the modified AASHTO maximum
density
(d) Surface Course
The 15cm thick surface course is well graded sandy gravel with
some silty clay fraction The materials for the road segment from
Kilometer 0+000 to Kilometer 173+000 are derived from calcrete deposits
while the materials for the remaining portion are derived from weathered
3-1
bedrock The surface course has controlled gradation plasticity and
durability to obtain sufficient strength to reduce ravelling to a minimum
particularly during the dry season and to resist the wear of traffic
Surface course materials have been obtained by screening crushing
and blending materials from 9 borrow areas and were compacted to a
minimum of 98 of modified AASUTO maximum dry density The comshy
posite properties for each borrow pit are indicated in the Average
Gradation Ourvesincluded as Figures B-5 through B-13 Directly
after construction of the surface course the measured mean relative
compaction was 100 of the modified AASHTO maximum density
B-2
N A TA K A ZUN GU LA RO0A D 70 033 90 CC
00 00 0 0 0+I 03- 30L K
0 I I
M 3 100 0002L [2
_
MATERIALS UTILIZATION DIAGRAM Fiure -I
NATA - KAZUNGULA ROAD
+--- 121
y T
MATERIALS UTILIZATION DIAGRAM Fgure R-Z
NAT A - KAZ UN GULA ROAD
07 2 230K300 220 220 232 252
I 3 3 2
MATERIALS UTILIZATION DIAGRAM Figure 2-3
itLT-m
CHOBE RIVER BY-PASS ROAD 02__ Q___ 0 60 40 - 0 50 0 i
-F-CEL
-Tl J-II II
MATERIALS UTILIZATION DIAGRAM Figure B-4
3 SIEVE ANALYSIS SMI~ia VIII
IY UN In~ VI STAISRS SIEVE NUMBfh SUE9 - usuLguNuus O-- aoIiUl- I1
11I a to to 0 i oIIIa lf I
II
SN Cu ye B
II N
o
i B _ ___~ N II 1 l s - Curi e At-
I 2 I a 6 4 2 i5 4 3 2 a -
GRAIN I IZE MILTERS
SILT AND CLAY SOILS GRAVEL SAND
I NUMBE1RSAMPLE DEPTH LL KIE IPTIONIELEV P1 ECIT
A Composit 38 19 CrusherAverage Runof 192 samples
B Composit 33 17 Surface Course Blend asAverage of 236 samples placed
MDD 1960 kgm Los Angeles Abrasion = 42 Average Blend Added 15=
REPUBLIC OF BOTSWANA TI PPETTS-ASSETT-NcCAIThY-STRATTOU MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY BOTSWANA-ZAMBIA GRAIN SIZE DISTRIBUTION BY DmArTE Q76HIGHWAY j PIT 2A DOi FIGURE B-5
E ANLYSISSIEVE NALYSIS NI
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GRIISZ IN MILLIMETERS
COACE iE NtIUM FI SILT AD CLAY SOILSGRAVEL SAND
5r IBSAMPLE DEPTH ELEV LLP1
A Composite 28 10 Crusher Run Average of 229 samples
B Composite 28 11 Surface Course Blend as Placed Average of 58 samples
2050 kgm3 Averaoe Blend Added shy
TIPPETTS-ASETT-NCCARTIY-STATTONREPUBLIC OF BOTSWANA NEW YORK NY
MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS
BRAIN SIZE DISTRIBUTION BY NCZ jAATE9 876BOTSWANA-ZAMBIA
HIGHWAY PIT 14 amp 14A OWN FIGURE B-6
i
S ANALYSIS 01 ANALYSIS
SIEVE - n -IIII- SIZ-MII- - IN i
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E--l I UNEASMPLEDEPlTH ELEV LL P1 KWKIPTION
A Composite 36 19 Crusher Run
Average of 116 Samples
B Composite 36 15 Surface Course Blend Average of 138 samples
H GHWA E SA 18 SILT ANDURCLA-SIL
3kgm Los Angeles Abrasion 28
Av agau Pnd AAd = 907 ITI UETT$-ABBTT-NcentcentARTNY-STRATTON
NEW YORK NY
REPUBLIC OF BOTSWANA
MINISTRY OF WORKS amp COM24UNICATIONSIT NINEERS1
I I MGIELI7 I 1 8AIIGIWAE
I
4
SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU
V 1 Oe 001l
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IGRAIN SIZE IN MILLIMETERS
COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS
GRAVEL SAND
SAMP DEPTH ELEV L P1 0NBERIIPTI
A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples
B Composit( 28 13 Surface Course Blend as Placed
Average of 85 samples
Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA
REPUBLIC OF BOTSWANA TI EfTTS-AIETT-NCARTY-STRATTOi ITTqTPI yen O WOVQ A n rn WTraTTn~lz ENGINEERS NEW YOlK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8
-D IUR IB
II SIEVE ANALYIIS 1411 I LYIlMll
[urn $11min - I I ITUSE IVV I - mampINimums1 -l0 n 001
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I RI IE IN M IEER
CfliEI FIN g o au SIT SILFIN M40 5C o432 14593 ry B6
ver 7 samples
NUMBE NERPI
Ay I GRAIN SIZE IN MILLIMETR
5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND
A Q A- Aii dd d~A
IMUBEIRIIIIPIi
3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables
B Composit 26 13 Surface Course BlendU as Placed
Average of 79 samples
AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =
REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9
SIEVE ANALYSIS IMmv na awLYoia
SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I
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GRAIN SIZE IN MILLIMETERS
1 111I
NU BE GRAVEL
COARSE
I
MEDIUM
I SAND
FSILT AND CLAY SOILS
SAMPLE4 DEP EEY 1 SCBI1PTIORI
A
B
Composite
Composite
38
26
17
13
Crusher Run Basaltic Aggregate
Average of 176 samples
Surface Course Blend -s Placed Average of 58 samples
Average MDD = 2135 kgm Los Angeles Abrasion = 38
Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY
WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971
3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10
SIEVE ANIALYSIS lNVINI1111 ANALYSIS
I EV OPE IN - INI8 TOSIIEENN1-MLII
I
I - - i ii 0
I GRI SIZEto N OILS 1
I ANDLI IS
G VELIZE I
IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL
-APL ESN
DEPTH ELEY LL PI DESCRIPTIONNUSMBE
3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples
B Composite 26 13 Surface Course Blend as Placed Average of 58 samples
Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34
Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY
BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11
___ I
SIEVE ANALYSIS W11 ANKEm SIS
SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS
01 001
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6 559 2 a65 3 2 1 6532 S
II GRAIN SIZE INMILLIMETERS
=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL
GRAVEL SN
I SAMPE DEPTH ELEV LL P)S DESCRIPTION
A omposite 28 10 Crusher Run
SAverage of 72 samples
B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples
Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20
REPUBLICUINISTRY 0OF OF
BOTSWANA WORKS amp COMMUNIGTIONS
TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12
I
SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM
-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U
I _
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N IC A11
IQI II
1 IG S IIIMETE
I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND
SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION
A Composite 34 15 Crusher Run Average of 74 samples
B Composite 29 12 Surface Course Blend as Placed
Average of 42 samples
MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15
REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA
ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N
NEW sy cKA
YORK NYT E-2 5 1 7 7
HIGHWAY PIT 32A Mwe FIGURE B-13
I I I I I I I I
APPENDIX C
I WATER WELL LOCATIONS
I I I I I I I I I
APPENDIX C WATER WELL LOCATIONS
WELL NO 3
Location Km 171 Lt of centerline 200 meters
Drill - 6 x 392
Ream - 8 x 92
Case - 6 x 84
Test - 24 Hours - 276
Pump 6000 G P H
Total depth - 392
Pumped at 150
24 Hr Drawdown - 3
Water Good
WELL NO 4
Location Km 175 - Lt of centerline 100 meters
Drill - 6 x 380
Ream - 8 x 82
Case - 7 x 82
Test - 276
Pump 1800 G P H
Total depth - 380
Pumped at 200
Drawdown 24 Hr - 100
Water Good
WELL NO 5 (Govt No 2436
Location Km 178 - Lt of centerline 115 meters
Test -276
Pump - 1400 G P H
Total depth - 160
Pumped at 140
24 Hr Drawdown - 60
Water Good C-1
WELL NO 6
Location Km 183 - Lt of centerline 60 meters
Drill - 6 x 436
Ream - 8 x 86
Case - 7 x 86
Test - 276
Pump - 500 G P H
Total depth - 436
Pumped at 250
24 Hr Drawdown - 150
Water Good
WELL NO 7 - (Govt No 2435)
Location Km 189 - Rt of centerline 100 meters
Clean amp Test
Pump - 6000 G P H
Pumped at 140
24 Hr Drawdown - 10
Water Good
WELL NO 14
Location Km 252 - Lt of centerline 100 meters
Drill - 6 x 250
Ream - 8 x 53
Case - 6 x 53
Test - 276
Pump - 6000 G P H
Total depth - 250
Pumped at 150
24 Hr Drawdown - 6
Water Good
C-2
WELL AT KM 256 MAINTENANCE FACILITY NO 3
Location Km 256 - Lt of centerline 200 meters
Depth - 100 feet
Water Rest Level - 42 feet
Depth Pump Set - 70 feet
24 Hr Test - 1800 G P H
WELL NO 15
Location Km 245 - Rt of centerline 40 meters
Drill - 6 x 260
Ream - 8 x 54
Case - 54
Test -276
Pump - 1500 G P H
Total depth - 260
Pumped at 200
24 Hr Drawdown - 140
Water Good
WELL NO 16 Location Km 236 -Rt of centerline 30 meters
Drill - 6 x 250
Ream - 8 x 22
Case - 6 x 22
Test - 276
Pump -6000 G P H
Total depth - 288
Pumped at 150
24 Hr Drawdown - 10
Water Good
C-3
WELL NO 17
Location Km 224 - Rt of centerline 30 meters
Drill - 10 x 89
Case - 8 x 85
Drill- 8x 43
Drill - 6 x 38
Case -6 x 132
Test - 276
Pump -2000 G P H
Total Depth - 170
Pumped at 100
24 Hr Drawdown - 11
Water Good
WELL NO 18
Location Km 217 - Lt of centerline 200 meters
Drill -i0 x 70
Case - 7 x 70
Drill - 7 x 52
Drill - 6 x 88
Case - 6 x 122
Test - 276
Pump 2400 G P H
Total depth - 210
Pumped at 200
24 Hr Drawdown - 140
Water Good
C-4
WELL NO 19
Location Km 213 - Lt of centerline 100 meters
Drill - 10 x 44
Case - 8 x 40
Drill - 8 x 76
Drill 6 x 130
Case - 6 x 120
Test - 276
Pump - 6000 G P H
Total depth - 210
Pumped at 60
24 Hr Drawdown - 10
Water Good
WELL NO 20
Location Km 143 - Rt of centerline 100 meters
Drill - 10 x 240
Case - 7 x 220
Drill -6 x 378
Case - 6 x 240
Case - 5 x 240
Test - 276
Pump -1500 G P H
Total depth - 618
Pumped at 460
24 Hr Drawdown - 105
Water slightly salty to taste but drinkable
C-5
WELL NO 23
Location Km 139 - Lt of centerline 100 meters
Drill - 12 x 290
Place amp Extract Case - 10 x 290
Drill - 8 x 30
Drill - 6 x 40
Case - 8 x 290
Case - 6 x 320
Test - 276
Pump - 1200 G P H
Total depth - 360
Pumped at 330
24 Hr Drawdown - 120
Water salty
WELL NO 24
Location Km 135 - Lt of centerline 500 meters
Drill - 12 x 270
Drill - 10 x 10
Case - 10 x 270
Drill -8 x 30
Case - 8 x 290
Case -6 x 310
Case - 5 x 320
Test -276
Pump -4000 +G P H
Total depth - 320
Pumped at 270
24 Hr Drawdown - 2
Water Salty
C-6
I
5
WELL KM 205 MAINTENANCE FACILITY NO 2
Location Km 105 - Lt of centerline 40 meters
Depth - 302 feet
~ Water Rest Level - 82 feet
Depth Pump Set - 150 feet
48 Hr Test - 3000 + G P H
WELL NO 26
Location Km 82 - Lt of centerline 100 meters
Drill - 12 x 145
5 -8 x145
Drill - 8 x 23
-Case
I Drill - 7 x 10
Case - 7 x 168
I Case - 6 x178
Test - 276
Pump - 1200 G P H
Total depth - 306
I Pumped at 140
24 Hr Drawdown - 35
I Water Good
C
I 0-7
WELL NO 27
Location Km 77 - Lt of centerline 100 meters
Drill - 12 x 174
Install amp Extract Case - 10 x 174
Case - 8 x 174
Drill - 9 x 68
Drill - 8 x 64
Case - 7 x 242
Case - 6 x 306
Test - 276
Pump - 4000 + G P H
Total Depth - 306
Pumpe at 240
24 Hr Drawdown - 0
Water Good
WELL NO 28- (Govt No 2465)
Location Km 63 - Rt of centerline 100 meters
Clean amp Extract Case - 300
Ream - 10 x 98
Ream - 8x 27
Ream - 6 x 12
Case - 8 x 98
Case - 6 x 125
Test - 276
Pump - 1000 + G P H
Total depth - 137
Pumped at 130
24 Hr Drawdown - 33
Water Good
C-8
WELL NO 30
Location Km 47 - Rt of centerline 400 meters
Drill - 12 x 132
Case - 10 x 89
Install amp Extract Case - 12 x 43
Drill - 10 x 117
Case - 7 x 242
Drill - 6 x 183
Install amp Extract Case - 6 x 408
Test - 276
Pump - 1000 G P H
Total depth - 408
Pumped at 160
24 Hr Drawdown - 77
Water Salty
WELL NO 31
- Lt of centerline 200 metersLocation Km 44
Drill - 12 x 110
Case - 10 x 100
Drill - 10 x 142
Case 8 x 142
Drill - 8 x 250
Case 7 x 392
Drill - 6 x 78
Test - 276
Pump - 3000 G P H
Total depth - 502
Pumped at 160
24 Hr Drawdown - 44
Water Salty
C-9
WELL NO 32
Location Km 42 - Lt of centerline 100 meters
Drill - 12 x 108
Case - 10 x 108
Drill - 10 x 212
Drill - 8 x 120
Case - 6 x 340
Case - 8 x 182
Test - 276
Pump - 3000 + G P H
Total depth - 448
Pumped at 160
24 Hr Drawdown - 20
Water Salty
WELL NO 34
Location Km 35 - Lt of centerline 200 meters
Drill - 12 x 230
Install amp Extract Case - 10 x 230
Drill - 8 x 30
Case -6 x 260
Drill - 6 x 160
Case -5 x 324
Case - 8 x 20
Test - 276
Pump -1000 + G P H
Total depth - 420
Pumped at 150
24 Hr Drawdown - 100
Water Salty
C-10
WELL NO 36
Location Km 7 N E along old track from Km 63
Drill - 12 x 180
Case - 10 x 180
Drill - 10 x 231
Case - 8 x 211
Drill- 8x 254
Case - 6 x 245
Test -276
Pump -4000 + G P H
Total depth - 265
Pumped at 180
24 Hr Drawdown - 0
Water Good
C-11
I 3 I 1 I I I I B j APPENDDC D
SYNOPSIS 0 KEY CORRESPONDENCE
3 DURING CONSTRUCTION
I pound I I I 1 I I
On September 1 1973 the Contractor confirmed the
estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts
On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project
On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be
obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated
On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine
On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation
On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension
On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension
On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval
On October 15 1973 the Engineer returned the construction progress schedule for correction
On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim
D-I
On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor
On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project
On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25
On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter
On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents
On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract
On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised
On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading
On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule
On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request
On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period
D-2
On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report
On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material
On August 19 1974 the Contractor submitted an updated construction progress schedule for approval
On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases
On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor
On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor
On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project
On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course
On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country
On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course
On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions
On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule
On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress
D-3
On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract
On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana
On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor
On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion
On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations
On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases
On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season
On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees
On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections
On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project
On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course
On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project
On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract
D-4
October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request
On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor
On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620
On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project
On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y
completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense
On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted
On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project
On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim
On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic
On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor
On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976
D-5
On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time
On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares
On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material
On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500
On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor
On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula
On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana
OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected
On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road
On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road
Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10
On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued
On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced
On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091
On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091
Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued
D-6
I I IUUU U U UU I U
E PROJECT PHOTOGRAPHS
I IIIU U I
I Crushing Plants Surface Course
Pit 2A
Pug Mill Blending Surface Course
Pit 25A
II Surface Course
Pit 25A
UURYPTOERTOSE Pug Mil Blending
Road Reserve Bush Clearing
Km 242
U
Embankment Construction Km 287
IN
Road Construction Water Supply
Km 189
ROADWAY UNDER CONSTRUTION
II
E-2
Stockpiling Material Base Course
Special Embankment Construction Km 232
Watering of Embankment Km 257
ROADWAY UNDER CONSTRUCTION E-3
Culvert Assembly
Twin Culvert with Sand-Cement Pitching
Multiple Culverts with Sand-Cement Pitching
CULVERT INSTALLATIONS E- 4
AT Km 25
AT Km 194
Emergency Landing Strip Kra 2605
FINISHED ROADWAY E- 5
AT Km 286
AT Chobe By-Pass Junction Km 297
I Chobe By-Pass Road Near Ngoma Bridge
E-6FINISHED ROADWAY
I I I I I I I I
APPENDIX A
I CONSTRUCTION EQUIPMENT
I I I I U I I I I I
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT
I Descqription
2 Chevrolet Impala Sedan
5 jeep-Wagoner
7 jeep-Wagoner
1 Chevrolet Vega
23 Chevrolet Pickup
19 Mack Tractor (T675-8W)
2 Chevrolet Flat Bed
5 Mack-Platform Stake (T426-3500)
1 Mack-2000 Gal Fuel (T426-3500)
4 Mack Dump Truck 10 cy
2 Chevrolet Dump Truck 5 cy
1 Mack-Birmingham Tandum Lowboy Trailer
2 Mack-Gindy 25 Ton Tandum Semi Trailer
8 Heil- P3S 303 cy Dump Trailer
I 7 Fruehauf-TEO-F3-R 10000 Gal Tanker
5 Fruehauf-TEO-F2-R 6500 Gal Tanker
5 Fruehauf-Tandum Axle Dolly
2 Barko 14000 Telescopic Crane
6 Cobey 1062 Wagon Trailer
1 Cedarapids 443 Commander Crusher
1 Peerless Portable Base Stabilisation Plant
2 Atlantic International Water Treatment Plant
6 Caterpillar 631-B TractorS631-B Scraper
7 Caterpillar D8-H Dozer
2 4
Caterpillar D9- Dozer Caterpillar D6-C Dozer
2 Caterpillar 12-F Grader
5 Caterpillar 14-E Grader
U A-i
1
I
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (Cont)
Quantity
4
1
4
11Raygo
1
S1 2
ICaterpillar-200KW 3
1
1
1
1
1
3
2 2
2
I
1
2
2
I
1 2
8
1
j 8
1 4
9
1
Description
Caterpillar 966 Loader
Trojan 4000 Loader
Raygo 400A Compactor Vibrator
410A Compactor Vibrator
Vibro Plus Vibrating Sheepsfoot Roller
Bros 10000 Compactor
Bros 6000 Compactor
Generator Caterpillar - 125KW Generator
Little Reddevil Generator
Kholer 3KW Generator
Kholer 2KW Generator
Detroit Diesel Generator (2D-32)
Kholer Generator (5CKM61)
Hobart GR-3 03 Welders w trolley
Worthington 365 Compressor Worthington 160 Compressor
Kellypower Tamper
John Deere 2700 Disc Harrow10 Cut
ohn Deere 1630 Disc Harrow 7 Cut
Worthington WS-55 Rock Drill
Alemite Portable Service Station
Graco Lube Ranger
Worthington Wagon Drill
Layne Bowler Deep Well Pump
Layne Bowler Pump only
4 Centrifugal Pump
2 Centrifugal Pump
Columbian Steel Water Tanks 20000 US Gal
A-2
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (contd)
Quanti
1I Description
Caterpillar Parallel Shank Ripper
2 Fleco Blade Rake
4 Chainsaw
3 Gardner-Denver Compressor
5 Aerotron Radio Transmitters $1203
7 Aerotron Radio Receivers $2 10
16 SSB Radio Transceivers $1340
8 Auxilliary Radio Transceivers $1340
2 Cevy 4 x 4 Pickup Truck 8 Chevy 2 x 4 Pickup Truck
1 L B Smith Cone Crusher
2 Ford 4 x 4 (1164-14C Tractor)
2 Bros Sheepsfoot Roller
1 Hyster Towed Vibratory Compactor
During 1975 and 1976 the Contractor added the following listed equipment
1 Caterpillar No 14 Motor Grader
1 Caterpillar No 966 Loader
1 Trojan No 4000 Loader
1 Cone Crushing Plant 3 ft Standard Fine Bowl with 4 Deck Screens
4 Conveyor Units
A-3
I 1 I I I U I I
APPENDIX B
I I SOILS AND MATERIALS
I I 1 I I I I I 1
APPENDIX B
SOILS AND MATERIALS
(a) General
The road pavement is composed basically of two layers the surface
course and base course overlaying a compacted subgrade or embankment
The sources and volumes of the surface course and base course materials
are indicated in the Materials Utilization Diagrams included as Figures B-i
through B-4
(b) Subgrade
The subgrade soil consists primarily of aeolian fine sand except
for approximately 36 kilometers of the road for which the subgrade is a pan material consisting of clay In the pan areas special 1 Om thick
embankments were constructed with plasticity and fineness control of material
The subgrade and embankment soils were compacted to a minimum of 90
of modified AASHTO compaction The measured mean relative compaction
obtained immediately after compaction of the subgrade was 935 of the modified AASHTO maximum density
(c) Base Course
The majority of the base course materials are derived from aeolian deposits ie fine sand with a trace to some silty clay The
remaining base bourse approximately 15 of the total was obtained from pits having a large component of gravel The 15cm thick base
course is bank run or blended material for which the amounts of fines
and plasticity were controlled The base course materials were obtained from 123 base borrow pits and compacted to a minimum 95 of modified AASHTO density The measured mean relative compaction
directly after construction was 96 of the modified AASHTO maximum
density
(d) Surface Course
The 15cm thick surface course is well graded sandy gravel with
some silty clay fraction The materials for the road segment from
Kilometer 0+000 to Kilometer 173+000 are derived from calcrete deposits
while the materials for the remaining portion are derived from weathered
3-1
bedrock The surface course has controlled gradation plasticity and
durability to obtain sufficient strength to reduce ravelling to a minimum
particularly during the dry season and to resist the wear of traffic
Surface course materials have been obtained by screening crushing
and blending materials from 9 borrow areas and were compacted to a
minimum of 98 of modified AASUTO maximum dry density The comshy
posite properties for each borrow pit are indicated in the Average
Gradation Ourvesincluded as Figures B-5 through B-13 Directly
after construction of the surface course the measured mean relative
compaction was 100 of the modified AASHTO maximum density
B-2
N A TA K A ZUN GU LA RO0A D 70 033 90 CC
00 00 0 0 0+I 03- 30L K
0 I I
M 3 100 0002L [2
_
MATERIALS UTILIZATION DIAGRAM Fiure -I
NATA - KAZUNGULA ROAD
+--- 121
y T
MATERIALS UTILIZATION DIAGRAM Fgure R-Z
NAT A - KAZ UN GULA ROAD
07 2 230K300 220 220 232 252
I 3 3 2
MATERIALS UTILIZATION DIAGRAM Figure 2-3
itLT-m
CHOBE RIVER BY-PASS ROAD 02__ Q___ 0 60 40 - 0 50 0 i
-F-CEL
-Tl J-II II
MATERIALS UTILIZATION DIAGRAM Figure B-4
3 SIEVE ANALYSIS SMI~ia VIII
IY UN In~ VI STAISRS SIEVE NUMBfh SUE9 - usuLguNuus O-- aoIiUl- I1
11I a to to 0 i oIIIa lf I
II
SN Cu ye B
II N
o
i B _ ___~ N II 1 l s - Curi e At-
I 2 I a 6 4 2 i5 4 3 2 a -
GRAIN I IZE MILTERS
SILT AND CLAY SOILS GRAVEL SAND
I NUMBE1RSAMPLE DEPTH LL KIE IPTIONIELEV P1 ECIT
A Composit 38 19 CrusherAverage Runof 192 samples
B Composit 33 17 Surface Course Blend asAverage of 236 samples placed
MDD 1960 kgm Los Angeles Abrasion = 42 Average Blend Added 15=
REPUBLIC OF BOTSWANA TI PPETTS-ASSETT-NcCAIThY-STRATTOU MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY BOTSWANA-ZAMBIA GRAIN SIZE DISTRIBUTION BY DmArTE Q76HIGHWAY j PIT 2A DOi FIGURE B-5
E ANLYSISSIEVE NALYSIS NI
OPEING - In jS PhIMS-SEVE iNRh3EN son - MILLIMETER
V11 6plusmn SSIEVE
6 i S 0-4 0 10 miUS) 3055 3 001mesa a
9 I I I - -
Crye B
S bull
1TCrii INN20 1 e A- NI deg I FIK 46591 2 a045 4 2 1115 5 2 6
GRIISZ IN MILLIMETERS
COACE iE NtIUM FI SILT AD CLAY SOILSGRAVEL SAND
5r IBSAMPLE DEPTH ELEV LLP1
A Composite 28 10 Crusher Run Average of 229 samples
B Composite 28 11 Surface Course Blend as Placed Average of 58 samples
2050 kgm3 Averaoe Blend Added shy
TIPPETTS-ASETT-NCCARTIY-STATTONREPUBLIC OF BOTSWANA NEW YORK NY
MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS
BRAIN SIZE DISTRIBUTION BY NCZ jAATE9 876BOTSWANA-ZAMBIA
HIGHWAY PIT 14 amp 14A OWN FIGURE B-6
i
S ANALYSIS 01 ANALYSIS
SIEVE - n -IIII- SIZ-MII- - IN i
It a s 1
Ue a -- e B
- 1 -I-[_I - I I I
6l51 10 8 $514 1 O is 05I I 21 8GANSZNILMTR OA RE Filo 9OA-1i 1DI UM F log S ILT AND CLAY SO ILS
GRAVEL nSAND
E--l I UNEASMPLEDEPlTH ELEV LL P1 KWKIPTION
A Composite 36 19 Crusher Run
Average of 116 Samples
B Composite 36 15 Surface Course Blend Average of 138 samples
H GHWA E SA 18 SILT ANDURCLA-SIL
3kgm Los Angeles Abrasion 28
Av agau Pnd AAd = 907 ITI UETT$-ABBTT-NcentcentARTNY-STRATTON
NEW YORK NY
REPUBLIC OF BOTSWANA
MINISTRY OF WORKS amp COM24UNICATIONSIT NINEERS1
I I MGIELI7 I 1 8AIIGIWAE
I
4
SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU
V 1 Oe 001l
- -r--I-I -- I
S E- -IN S
KI zz7llfl$zIIIti z I
low560
20
2
IGRAIN SIZE IN MILLIMETERS
COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS
GRAVEL SAND
SAMP DEPTH ELEV L P1 0NBERIIPTI
A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples
B Composit( 28 13 Surface Course Blend as Placed
Average of 85 samples
Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA
REPUBLIC OF BOTSWANA TI EfTTS-AIETT-NCARTY-STRATTOi ITTqTPI yen O WOVQ A n rn WTraTTn~lz ENGINEERS NEW YOlK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8
-D IUR IB
II SIEVE ANALYIIS 1411 I LYIlMll
[urn $11min - I I ITUSE IVV I - mampINimums1 -l0 n 001
a1 i 4 is s 0 aL w I 2 0665S a a 4 i 0i
-7sl
96---
I RI IE IN M IEER
CfliEI FIN g o au SIT SILFIN M40 5C o432 14593 ry B6
ver 7 samples
NUMBE NERPI
Ay I GRAIN SIZE IN MILLIMETR
5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND
A Q A- Aii dd d~A
IMUBEIRIIIIPIi
3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables
B Composit 26 13 Surface Course BlendU as Placed
Average of 79 samples
AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =
REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9
SIEVE ANALYSIS IMmv na awLYoia
SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I
I- 01 001
e---__
Ir1 -NIP_]
20
OA
$05 9 2
E
I
86543
I
7tN
2 1 65
_OAlEED t
5 2
FN
I
GRAIN SIZE IN MILLIMETERS
1 111I
NU BE GRAVEL
COARSE
I
MEDIUM
I SAND
FSILT AND CLAY SOILS
SAMPLE4 DEP EEY 1 SCBI1PTIORI
A
B
Composite
Composite
38
26
17
13
Crusher Run Basaltic Aggregate
Average of 176 samples
Surface Course Blend -s Placed Average of 58 samples
Average MDD = 2135 kgm Los Angeles Abrasion = 38
Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY
WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971
3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10
SIEVE ANIALYSIS lNVINI1111 ANALYSIS
I EV OPE IN - INI8 TOSIIEENN1-MLII
I
I - - i ii 0
I GRI SIZEto N OILS 1
I ANDLI IS
G VELIZE I
IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL
-APL ESN
DEPTH ELEY LL PI DESCRIPTIONNUSMBE
3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples
B Composite 26 13 Surface Course Blend as Placed Average of 58 samples
Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34
Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY
BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11
___ I
SIEVE ANALYSIS W11 ANKEm SIS
SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS
01 001
sodego
i i
U Ae
6 559 2 a65 3 2 1 6532 S
II GRAIN SIZE INMILLIMETERS
=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL
GRAVEL SN
I SAMPE DEPTH ELEV LL P)S DESCRIPTION
A omposite 28 10 Crusher Run
SAverage of 72 samples
B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples
Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20
REPUBLICUINISTRY 0OF OF
BOTSWANA WORKS amp COMMUNIGTIONS
TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12
I
SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM
-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U
I _
I1li
Ia _ Cu ve
N IC A11
IQI II
1 IG S IIIMETE
I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND
SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION
A Composite 34 15 Crusher Run Average of 74 samples
B Composite 29 12 Surface Course Blend as Placed
Average of 42 samples
MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15
REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA
ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N
NEW sy cKA
YORK NYT E-2 5 1 7 7
HIGHWAY PIT 32A Mwe FIGURE B-13
I I I I I I I I
APPENDIX C
I WATER WELL LOCATIONS
I I I I I I I I I
APPENDIX C WATER WELL LOCATIONS
WELL NO 3
Location Km 171 Lt of centerline 200 meters
Drill - 6 x 392
Ream - 8 x 92
Case - 6 x 84
Test - 24 Hours - 276
Pump 6000 G P H
Total depth - 392
Pumped at 150
24 Hr Drawdown - 3
Water Good
WELL NO 4
Location Km 175 - Lt of centerline 100 meters
Drill - 6 x 380
Ream - 8 x 82
Case - 7 x 82
Test - 276
Pump 1800 G P H
Total depth - 380
Pumped at 200
Drawdown 24 Hr - 100
Water Good
WELL NO 5 (Govt No 2436
Location Km 178 - Lt of centerline 115 meters
Test -276
Pump - 1400 G P H
Total depth - 160
Pumped at 140
24 Hr Drawdown - 60
Water Good C-1
WELL NO 6
Location Km 183 - Lt of centerline 60 meters
Drill - 6 x 436
Ream - 8 x 86
Case - 7 x 86
Test - 276
Pump - 500 G P H
Total depth - 436
Pumped at 250
24 Hr Drawdown - 150
Water Good
WELL NO 7 - (Govt No 2435)
Location Km 189 - Rt of centerline 100 meters
Clean amp Test
Pump - 6000 G P H
Pumped at 140
24 Hr Drawdown - 10
Water Good
WELL NO 14
Location Km 252 - Lt of centerline 100 meters
Drill - 6 x 250
Ream - 8 x 53
Case - 6 x 53
Test - 276
Pump - 6000 G P H
Total depth - 250
Pumped at 150
24 Hr Drawdown - 6
Water Good
C-2
WELL AT KM 256 MAINTENANCE FACILITY NO 3
Location Km 256 - Lt of centerline 200 meters
Depth - 100 feet
Water Rest Level - 42 feet
Depth Pump Set - 70 feet
24 Hr Test - 1800 G P H
WELL NO 15
Location Km 245 - Rt of centerline 40 meters
Drill - 6 x 260
Ream - 8 x 54
Case - 54
Test -276
Pump - 1500 G P H
Total depth - 260
Pumped at 200
24 Hr Drawdown - 140
Water Good
WELL NO 16 Location Km 236 -Rt of centerline 30 meters
Drill - 6 x 250
Ream - 8 x 22
Case - 6 x 22
Test - 276
Pump -6000 G P H
Total depth - 288
Pumped at 150
24 Hr Drawdown - 10
Water Good
C-3
WELL NO 17
Location Km 224 - Rt of centerline 30 meters
Drill - 10 x 89
Case - 8 x 85
Drill- 8x 43
Drill - 6 x 38
Case -6 x 132
Test - 276
Pump -2000 G P H
Total Depth - 170
Pumped at 100
24 Hr Drawdown - 11
Water Good
WELL NO 18
Location Km 217 - Lt of centerline 200 meters
Drill -i0 x 70
Case - 7 x 70
Drill - 7 x 52
Drill - 6 x 88
Case - 6 x 122
Test - 276
Pump 2400 G P H
Total depth - 210
Pumped at 200
24 Hr Drawdown - 140
Water Good
C-4
WELL NO 19
Location Km 213 - Lt of centerline 100 meters
Drill - 10 x 44
Case - 8 x 40
Drill - 8 x 76
Drill 6 x 130
Case - 6 x 120
Test - 276
Pump - 6000 G P H
Total depth - 210
Pumped at 60
24 Hr Drawdown - 10
Water Good
WELL NO 20
Location Km 143 - Rt of centerline 100 meters
Drill - 10 x 240
Case - 7 x 220
Drill -6 x 378
Case - 6 x 240
Case - 5 x 240
Test - 276
Pump -1500 G P H
Total depth - 618
Pumped at 460
24 Hr Drawdown - 105
Water slightly salty to taste but drinkable
C-5
WELL NO 23
Location Km 139 - Lt of centerline 100 meters
Drill - 12 x 290
Place amp Extract Case - 10 x 290
Drill - 8 x 30
Drill - 6 x 40
Case - 8 x 290
Case - 6 x 320
Test - 276
Pump - 1200 G P H
Total depth - 360
Pumped at 330
24 Hr Drawdown - 120
Water salty
WELL NO 24
Location Km 135 - Lt of centerline 500 meters
Drill - 12 x 270
Drill - 10 x 10
Case - 10 x 270
Drill -8 x 30
Case - 8 x 290
Case -6 x 310
Case - 5 x 320
Test -276
Pump -4000 +G P H
Total depth - 320
Pumped at 270
24 Hr Drawdown - 2
Water Salty
C-6
I
5
WELL KM 205 MAINTENANCE FACILITY NO 2
Location Km 105 - Lt of centerline 40 meters
Depth - 302 feet
~ Water Rest Level - 82 feet
Depth Pump Set - 150 feet
48 Hr Test - 3000 + G P H
WELL NO 26
Location Km 82 - Lt of centerline 100 meters
Drill - 12 x 145
5 -8 x145
Drill - 8 x 23
-Case
I Drill - 7 x 10
Case - 7 x 168
I Case - 6 x178
Test - 276
Pump - 1200 G P H
Total depth - 306
I Pumped at 140
24 Hr Drawdown - 35
I Water Good
C
I 0-7
WELL NO 27
Location Km 77 - Lt of centerline 100 meters
Drill - 12 x 174
Install amp Extract Case - 10 x 174
Case - 8 x 174
Drill - 9 x 68
Drill - 8 x 64
Case - 7 x 242
Case - 6 x 306
Test - 276
Pump - 4000 + G P H
Total Depth - 306
Pumpe at 240
24 Hr Drawdown - 0
Water Good
WELL NO 28- (Govt No 2465)
Location Km 63 - Rt of centerline 100 meters
Clean amp Extract Case - 300
Ream - 10 x 98
Ream - 8x 27
Ream - 6 x 12
Case - 8 x 98
Case - 6 x 125
Test - 276
Pump - 1000 + G P H
Total depth - 137
Pumped at 130
24 Hr Drawdown - 33
Water Good
C-8
WELL NO 30
Location Km 47 - Rt of centerline 400 meters
Drill - 12 x 132
Case - 10 x 89
Install amp Extract Case - 12 x 43
Drill - 10 x 117
Case - 7 x 242
Drill - 6 x 183
Install amp Extract Case - 6 x 408
Test - 276
Pump - 1000 G P H
Total depth - 408
Pumped at 160
24 Hr Drawdown - 77
Water Salty
WELL NO 31
- Lt of centerline 200 metersLocation Km 44
Drill - 12 x 110
Case - 10 x 100
Drill - 10 x 142
Case 8 x 142
Drill - 8 x 250
Case 7 x 392
Drill - 6 x 78
Test - 276
Pump - 3000 G P H
Total depth - 502
Pumped at 160
24 Hr Drawdown - 44
Water Salty
C-9
WELL NO 32
Location Km 42 - Lt of centerline 100 meters
Drill - 12 x 108
Case - 10 x 108
Drill - 10 x 212
Drill - 8 x 120
Case - 6 x 340
Case - 8 x 182
Test - 276
Pump - 3000 + G P H
Total depth - 448
Pumped at 160
24 Hr Drawdown - 20
Water Salty
WELL NO 34
Location Km 35 - Lt of centerline 200 meters
Drill - 12 x 230
Install amp Extract Case - 10 x 230
Drill - 8 x 30
Case -6 x 260
Drill - 6 x 160
Case -5 x 324
Case - 8 x 20
Test - 276
Pump -1000 + G P H
Total depth - 420
Pumped at 150
24 Hr Drawdown - 100
Water Salty
C-10
WELL NO 36
Location Km 7 N E along old track from Km 63
Drill - 12 x 180
Case - 10 x 180
Drill - 10 x 231
Case - 8 x 211
Drill- 8x 254
Case - 6 x 245
Test -276
Pump -4000 + G P H
Total depth - 265
Pumped at 180
24 Hr Drawdown - 0
Water Good
C-11
I 3 I 1 I I I I B j APPENDDC D
SYNOPSIS 0 KEY CORRESPONDENCE
3 DURING CONSTRUCTION
I pound I I I 1 I I
On September 1 1973 the Contractor confirmed the
estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts
On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project
On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be
obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated
On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine
On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation
On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension
On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension
On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval
On October 15 1973 the Engineer returned the construction progress schedule for correction
On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim
D-I
On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor
On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project
On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25
On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter
On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents
On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract
On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised
On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading
On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule
On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request
On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period
D-2
On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report
On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material
On August 19 1974 the Contractor submitted an updated construction progress schedule for approval
On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases
On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor
On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor
On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project
On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course
On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country
On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course
On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions
On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule
On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress
D-3
On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract
On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana
On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor
On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion
On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations
On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases
On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season
On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees
On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections
On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project
On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course
On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project
On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract
D-4
October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request
On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor
On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620
On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project
On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y
completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense
On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted
On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project
On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim
On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic
On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor
On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976
D-5
On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time
On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares
On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material
On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500
On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor
On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula
On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana
OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected
On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road
On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road
Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10
On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued
On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced
On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091
On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091
Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued
D-6
I I IUUU U U UU I U
E PROJECT PHOTOGRAPHS
I IIIU U I
I Crushing Plants Surface Course
Pit 2A
Pug Mill Blending Surface Course
Pit 25A
II Surface Course
Pit 25A
UURYPTOERTOSE Pug Mil Blending
Road Reserve Bush Clearing
Km 242
U
Embankment Construction Km 287
IN
Road Construction Water Supply
Km 189
ROADWAY UNDER CONSTRUTION
II
E-2
Stockpiling Material Base Course
Special Embankment Construction Km 232
Watering of Embankment Km 257
ROADWAY UNDER CONSTRUCTION E-3
Culvert Assembly
Twin Culvert with Sand-Cement Pitching
Multiple Culverts with Sand-Cement Pitching
CULVERT INSTALLATIONS E- 4
AT Km 25
AT Km 194
Emergency Landing Strip Kra 2605
FINISHED ROADWAY E- 5
AT Km 286
AT Chobe By-Pass Junction Km 297
I Chobe By-Pass Road Near Ngoma Bridge
E-6FINISHED ROADWAY
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT
I Descqription
2 Chevrolet Impala Sedan
5 jeep-Wagoner
7 jeep-Wagoner
1 Chevrolet Vega
23 Chevrolet Pickup
19 Mack Tractor (T675-8W)
2 Chevrolet Flat Bed
5 Mack-Platform Stake (T426-3500)
1 Mack-2000 Gal Fuel (T426-3500)
4 Mack Dump Truck 10 cy
2 Chevrolet Dump Truck 5 cy
1 Mack-Birmingham Tandum Lowboy Trailer
2 Mack-Gindy 25 Ton Tandum Semi Trailer
8 Heil- P3S 303 cy Dump Trailer
I 7 Fruehauf-TEO-F3-R 10000 Gal Tanker
5 Fruehauf-TEO-F2-R 6500 Gal Tanker
5 Fruehauf-Tandum Axle Dolly
2 Barko 14000 Telescopic Crane
6 Cobey 1062 Wagon Trailer
1 Cedarapids 443 Commander Crusher
1 Peerless Portable Base Stabilisation Plant
2 Atlantic International Water Treatment Plant
6 Caterpillar 631-B TractorS631-B Scraper
7 Caterpillar D8-H Dozer
2 4
Caterpillar D9- Dozer Caterpillar D6-C Dozer
2 Caterpillar 12-F Grader
5 Caterpillar 14-E Grader
U A-i
1
I
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (Cont)
Quantity
4
1
4
11Raygo
1
S1 2
ICaterpillar-200KW 3
1
1
1
1
1
3
2 2
2
I
1
2
2
I
1 2
8
1
j 8
1 4
9
1
Description
Caterpillar 966 Loader
Trojan 4000 Loader
Raygo 400A Compactor Vibrator
410A Compactor Vibrator
Vibro Plus Vibrating Sheepsfoot Roller
Bros 10000 Compactor
Bros 6000 Compactor
Generator Caterpillar - 125KW Generator
Little Reddevil Generator
Kholer 3KW Generator
Kholer 2KW Generator
Detroit Diesel Generator (2D-32)
Kholer Generator (5CKM61)
Hobart GR-3 03 Welders w trolley
Worthington 365 Compressor Worthington 160 Compressor
Kellypower Tamper
John Deere 2700 Disc Harrow10 Cut
ohn Deere 1630 Disc Harrow 7 Cut
Worthington WS-55 Rock Drill
Alemite Portable Service Station
Graco Lube Ranger
Worthington Wagon Drill
Layne Bowler Deep Well Pump
Layne Bowler Pump only
4 Centrifugal Pump
2 Centrifugal Pump
Columbian Steel Water Tanks 20000 US Gal
A-2
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (contd)
Quanti
1I Description
Caterpillar Parallel Shank Ripper
2 Fleco Blade Rake
4 Chainsaw
3 Gardner-Denver Compressor
5 Aerotron Radio Transmitters $1203
7 Aerotron Radio Receivers $2 10
16 SSB Radio Transceivers $1340
8 Auxilliary Radio Transceivers $1340
2 Cevy 4 x 4 Pickup Truck 8 Chevy 2 x 4 Pickup Truck
1 L B Smith Cone Crusher
2 Ford 4 x 4 (1164-14C Tractor)
2 Bros Sheepsfoot Roller
1 Hyster Towed Vibratory Compactor
During 1975 and 1976 the Contractor added the following listed equipment
1 Caterpillar No 14 Motor Grader
1 Caterpillar No 966 Loader
1 Trojan No 4000 Loader
1 Cone Crushing Plant 3 ft Standard Fine Bowl with 4 Deck Screens
4 Conveyor Units
A-3
I 1 I I I U I I
APPENDIX B
I I SOILS AND MATERIALS
I I 1 I I I I I 1
APPENDIX B
SOILS AND MATERIALS
(a) General
The road pavement is composed basically of two layers the surface
course and base course overlaying a compacted subgrade or embankment
The sources and volumes of the surface course and base course materials
are indicated in the Materials Utilization Diagrams included as Figures B-i
through B-4
(b) Subgrade
The subgrade soil consists primarily of aeolian fine sand except
for approximately 36 kilometers of the road for which the subgrade is a pan material consisting of clay In the pan areas special 1 Om thick
embankments were constructed with plasticity and fineness control of material
The subgrade and embankment soils were compacted to a minimum of 90
of modified AASHTO compaction The measured mean relative compaction
obtained immediately after compaction of the subgrade was 935 of the modified AASHTO maximum density
(c) Base Course
The majority of the base course materials are derived from aeolian deposits ie fine sand with a trace to some silty clay The
remaining base bourse approximately 15 of the total was obtained from pits having a large component of gravel The 15cm thick base
course is bank run or blended material for which the amounts of fines
and plasticity were controlled The base course materials were obtained from 123 base borrow pits and compacted to a minimum 95 of modified AASHTO density The measured mean relative compaction
directly after construction was 96 of the modified AASHTO maximum
density
(d) Surface Course
The 15cm thick surface course is well graded sandy gravel with
some silty clay fraction The materials for the road segment from
Kilometer 0+000 to Kilometer 173+000 are derived from calcrete deposits
while the materials for the remaining portion are derived from weathered
3-1
bedrock The surface course has controlled gradation plasticity and
durability to obtain sufficient strength to reduce ravelling to a minimum
particularly during the dry season and to resist the wear of traffic
Surface course materials have been obtained by screening crushing
and blending materials from 9 borrow areas and were compacted to a
minimum of 98 of modified AASUTO maximum dry density The comshy
posite properties for each borrow pit are indicated in the Average
Gradation Ourvesincluded as Figures B-5 through B-13 Directly
after construction of the surface course the measured mean relative
compaction was 100 of the modified AASHTO maximum density
B-2
N A TA K A ZUN GU LA RO0A D 70 033 90 CC
00 00 0 0 0+I 03- 30L K
0 I I
M 3 100 0002L [2
_
MATERIALS UTILIZATION DIAGRAM Fiure -I
NATA - KAZUNGULA ROAD
+--- 121
y T
MATERIALS UTILIZATION DIAGRAM Fgure R-Z
NAT A - KAZ UN GULA ROAD
07 2 230K300 220 220 232 252
I 3 3 2
MATERIALS UTILIZATION DIAGRAM Figure 2-3
itLT-m
CHOBE RIVER BY-PASS ROAD 02__ Q___ 0 60 40 - 0 50 0 i
-F-CEL
-Tl J-II II
MATERIALS UTILIZATION DIAGRAM Figure B-4
3 SIEVE ANALYSIS SMI~ia VIII
IY UN In~ VI STAISRS SIEVE NUMBfh SUE9 - usuLguNuus O-- aoIiUl- I1
11I a to to 0 i oIIIa lf I
II
SN Cu ye B
II N
o
i B _ ___~ N II 1 l s - Curi e At-
I 2 I a 6 4 2 i5 4 3 2 a -
GRAIN I IZE MILTERS
SILT AND CLAY SOILS GRAVEL SAND
I NUMBE1RSAMPLE DEPTH LL KIE IPTIONIELEV P1 ECIT
A Composit 38 19 CrusherAverage Runof 192 samples
B Composit 33 17 Surface Course Blend asAverage of 236 samples placed
MDD 1960 kgm Los Angeles Abrasion = 42 Average Blend Added 15=
REPUBLIC OF BOTSWANA TI PPETTS-ASSETT-NcCAIThY-STRATTOU MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY BOTSWANA-ZAMBIA GRAIN SIZE DISTRIBUTION BY DmArTE Q76HIGHWAY j PIT 2A DOi FIGURE B-5
E ANLYSISSIEVE NALYSIS NI
OPEING - In jS PhIMS-SEVE iNRh3EN son - MILLIMETER
V11 6plusmn SSIEVE
6 i S 0-4 0 10 miUS) 3055 3 001mesa a
9 I I I - -
Crye B
S bull
1TCrii INN20 1 e A- NI deg I FIK 46591 2 a045 4 2 1115 5 2 6
GRIISZ IN MILLIMETERS
COACE iE NtIUM FI SILT AD CLAY SOILSGRAVEL SAND
5r IBSAMPLE DEPTH ELEV LLP1
A Composite 28 10 Crusher Run Average of 229 samples
B Composite 28 11 Surface Course Blend as Placed Average of 58 samples
2050 kgm3 Averaoe Blend Added shy
TIPPETTS-ASETT-NCCARTIY-STATTONREPUBLIC OF BOTSWANA NEW YORK NY
MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS
BRAIN SIZE DISTRIBUTION BY NCZ jAATE9 876BOTSWANA-ZAMBIA
HIGHWAY PIT 14 amp 14A OWN FIGURE B-6
i
S ANALYSIS 01 ANALYSIS
SIEVE - n -IIII- SIZ-MII- - IN i
It a s 1
Ue a -- e B
- 1 -I-[_I - I I I
6l51 10 8 $514 1 O is 05I I 21 8GANSZNILMTR OA RE Filo 9OA-1i 1DI UM F log S ILT AND CLAY SO ILS
GRAVEL nSAND
E--l I UNEASMPLEDEPlTH ELEV LL P1 KWKIPTION
A Composite 36 19 Crusher Run
Average of 116 Samples
B Composite 36 15 Surface Course Blend Average of 138 samples
H GHWA E SA 18 SILT ANDURCLA-SIL
3kgm Los Angeles Abrasion 28
Av agau Pnd AAd = 907 ITI UETT$-ABBTT-NcentcentARTNY-STRATTON
NEW YORK NY
REPUBLIC OF BOTSWANA
MINISTRY OF WORKS amp COM24UNICATIONSIT NINEERS1
I I MGIELI7 I 1 8AIIGIWAE
I
4
SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU
V 1 Oe 001l
- -r--I-I -- I
S E- -IN S
KI zz7llfl$zIIIti z I
low560
20
2
IGRAIN SIZE IN MILLIMETERS
COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS
GRAVEL SAND
SAMP DEPTH ELEV L P1 0NBERIIPTI
A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples
B Composit( 28 13 Surface Course Blend as Placed
Average of 85 samples
Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA
REPUBLIC OF BOTSWANA TI EfTTS-AIETT-NCARTY-STRATTOi ITTqTPI yen O WOVQ A n rn WTraTTn~lz ENGINEERS NEW YOlK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8
-D IUR IB
II SIEVE ANALYIIS 1411 I LYIlMll
[urn $11min - I I ITUSE IVV I - mampINimums1 -l0 n 001
a1 i 4 is s 0 aL w I 2 0665S a a 4 i 0i
-7sl
96---
I RI IE IN M IEER
CfliEI FIN g o au SIT SILFIN M40 5C o432 14593 ry B6
ver 7 samples
NUMBE NERPI
Ay I GRAIN SIZE IN MILLIMETR
5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND
A Q A- Aii dd d~A
IMUBEIRIIIIPIi
3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables
B Composit 26 13 Surface Course BlendU as Placed
Average of 79 samples
AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =
REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9
SIEVE ANALYSIS IMmv na awLYoia
SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I
I- 01 001
e---__
Ir1 -NIP_]
20
OA
$05 9 2
E
I
86543
I
7tN
2 1 65
_OAlEED t
5 2
FN
I
GRAIN SIZE IN MILLIMETERS
1 111I
NU BE GRAVEL
COARSE
I
MEDIUM
I SAND
FSILT AND CLAY SOILS
SAMPLE4 DEP EEY 1 SCBI1PTIORI
A
B
Composite
Composite
38
26
17
13
Crusher Run Basaltic Aggregate
Average of 176 samples
Surface Course Blend -s Placed Average of 58 samples
Average MDD = 2135 kgm Los Angeles Abrasion = 38
Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY
WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971
3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10
SIEVE ANIALYSIS lNVINI1111 ANALYSIS
I EV OPE IN - INI8 TOSIIEENN1-MLII
I
I - - i ii 0
I GRI SIZEto N OILS 1
I ANDLI IS
G VELIZE I
IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL
-APL ESN
DEPTH ELEY LL PI DESCRIPTIONNUSMBE
3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples
B Composite 26 13 Surface Course Blend as Placed Average of 58 samples
Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34
Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY
BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11
___ I
SIEVE ANALYSIS W11 ANKEm SIS
SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS
01 001
sodego
i i
U Ae
6 559 2 a65 3 2 1 6532 S
II GRAIN SIZE INMILLIMETERS
=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL
GRAVEL SN
I SAMPE DEPTH ELEV LL P)S DESCRIPTION
A omposite 28 10 Crusher Run
SAverage of 72 samples
B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples
Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20
REPUBLICUINISTRY 0OF OF
BOTSWANA WORKS amp COMMUNIGTIONS
TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12
I
SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM
-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U
I _
I1li
Ia _ Cu ve
N IC A11
IQI II
1 IG S IIIMETE
I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND
SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION
A Composite 34 15 Crusher Run Average of 74 samples
B Composite 29 12 Surface Course Blend as Placed
Average of 42 samples
MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15
REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA
ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N
NEW sy cKA
YORK NYT E-2 5 1 7 7
HIGHWAY PIT 32A Mwe FIGURE B-13
I I I I I I I I
APPENDIX C
I WATER WELL LOCATIONS
I I I I I I I I I
APPENDIX C WATER WELL LOCATIONS
WELL NO 3
Location Km 171 Lt of centerline 200 meters
Drill - 6 x 392
Ream - 8 x 92
Case - 6 x 84
Test - 24 Hours - 276
Pump 6000 G P H
Total depth - 392
Pumped at 150
24 Hr Drawdown - 3
Water Good
WELL NO 4
Location Km 175 - Lt of centerline 100 meters
Drill - 6 x 380
Ream - 8 x 82
Case - 7 x 82
Test - 276
Pump 1800 G P H
Total depth - 380
Pumped at 200
Drawdown 24 Hr - 100
Water Good
WELL NO 5 (Govt No 2436
Location Km 178 - Lt of centerline 115 meters
Test -276
Pump - 1400 G P H
Total depth - 160
Pumped at 140
24 Hr Drawdown - 60
Water Good C-1
WELL NO 6
Location Km 183 - Lt of centerline 60 meters
Drill - 6 x 436
Ream - 8 x 86
Case - 7 x 86
Test - 276
Pump - 500 G P H
Total depth - 436
Pumped at 250
24 Hr Drawdown - 150
Water Good
WELL NO 7 - (Govt No 2435)
Location Km 189 - Rt of centerline 100 meters
Clean amp Test
Pump - 6000 G P H
Pumped at 140
24 Hr Drawdown - 10
Water Good
WELL NO 14
Location Km 252 - Lt of centerline 100 meters
Drill - 6 x 250
Ream - 8 x 53
Case - 6 x 53
Test - 276
Pump - 6000 G P H
Total depth - 250
Pumped at 150
24 Hr Drawdown - 6
Water Good
C-2
WELL AT KM 256 MAINTENANCE FACILITY NO 3
Location Km 256 - Lt of centerline 200 meters
Depth - 100 feet
Water Rest Level - 42 feet
Depth Pump Set - 70 feet
24 Hr Test - 1800 G P H
WELL NO 15
Location Km 245 - Rt of centerline 40 meters
Drill - 6 x 260
Ream - 8 x 54
Case - 54
Test -276
Pump - 1500 G P H
Total depth - 260
Pumped at 200
24 Hr Drawdown - 140
Water Good
WELL NO 16 Location Km 236 -Rt of centerline 30 meters
Drill - 6 x 250
Ream - 8 x 22
Case - 6 x 22
Test - 276
Pump -6000 G P H
Total depth - 288
Pumped at 150
24 Hr Drawdown - 10
Water Good
C-3
WELL NO 17
Location Km 224 - Rt of centerline 30 meters
Drill - 10 x 89
Case - 8 x 85
Drill- 8x 43
Drill - 6 x 38
Case -6 x 132
Test - 276
Pump -2000 G P H
Total Depth - 170
Pumped at 100
24 Hr Drawdown - 11
Water Good
WELL NO 18
Location Km 217 - Lt of centerline 200 meters
Drill -i0 x 70
Case - 7 x 70
Drill - 7 x 52
Drill - 6 x 88
Case - 6 x 122
Test - 276
Pump 2400 G P H
Total depth - 210
Pumped at 200
24 Hr Drawdown - 140
Water Good
C-4
WELL NO 19
Location Km 213 - Lt of centerline 100 meters
Drill - 10 x 44
Case - 8 x 40
Drill - 8 x 76
Drill 6 x 130
Case - 6 x 120
Test - 276
Pump - 6000 G P H
Total depth - 210
Pumped at 60
24 Hr Drawdown - 10
Water Good
WELL NO 20
Location Km 143 - Rt of centerline 100 meters
Drill - 10 x 240
Case - 7 x 220
Drill -6 x 378
Case - 6 x 240
Case - 5 x 240
Test - 276
Pump -1500 G P H
Total depth - 618
Pumped at 460
24 Hr Drawdown - 105
Water slightly salty to taste but drinkable
C-5
WELL NO 23
Location Km 139 - Lt of centerline 100 meters
Drill - 12 x 290
Place amp Extract Case - 10 x 290
Drill - 8 x 30
Drill - 6 x 40
Case - 8 x 290
Case - 6 x 320
Test - 276
Pump - 1200 G P H
Total depth - 360
Pumped at 330
24 Hr Drawdown - 120
Water salty
WELL NO 24
Location Km 135 - Lt of centerline 500 meters
Drill - 12 x 270
Drill - 10 x 10
Case - 10 x 270
Drill -8 x 30
Case - 8 x 290
Case -6 x 310
Case - 5 x 320
Test -276
Pump -4000 +G P H
Total depth - 320
Pumped at 270
24 Hr Drawdown - 2
Water Salty
C-6
I
5
WELL KM 205 MAINTENANCE FACILITY NO 2
Location Km 105 - Lt of centerline 40 meters
Depth - 302 feet
~ Water Rest Level - 82 feet
Depth Pump Set - 150 feet
48 Hr Test - 3000 + G P H
WELL NO 26
Location Km 82 - Lt of centerline 100 meters
Drill - 12 x 145
5 -8 x145
Drill - 8 x 23
-Case
I Drill - 7 x 10
Case - 7 x 168
I Case - 6 x178
Test - 276
Pump - 1200 G P H
Total depth - 306
I Pumped at 140
24 Hr Drawdown - 35
I Water Good
C
I 0-7
WELL NO 27
Location Km 77 - Lt of centerline 100 meters
Drill - 12 x 174
Install amp Extract Case - 10 x 174
Case - 8 x 174
Drill - 9 x 68
Drill - 8 x 64
Case - 7 x 242
Case - 6 x 306
Test - 276
Pump - 4000 + G P H
Total Depth - 306
Pumpe at 240
24 Hr Drawdown - 0
Water Good
WELL NO 28- (Govt No 2465)
Location Km 63 - Rt of centerline 100 meters
Clean amp Extract Case - 300
Ream - 10 x 98
Ream - 8x 27
Ream - 6 x 12
Case - 8 x 98
Case - 6 x 125
Test - 276
Pump - 1000 + G P H
Total depth - 137
Pumped at 130
24 Hr Drawdown - 33
Water Good
C-8
WELL NO 30
Location Km 47 - Rt of centerline 400 meters
Drill - 12 x 132
Case - 10 x 89
Install amp Extract Case - 12 x 43
Drill - 10 x 117
Case - 7 x 242
Drill - 6 x 183
Install amp Extract Case - 6 x 408
Test - 276
Pump - 1000 G P H
Total depth - 408
Pumped at 160
24 Hr Drawdown - 77
Water Salty
WELL NO 31
- Lt of centerline 200 metersLocation Km 44
Drill - 12 x 110
Case - 10 x 100
Drill - 10 x 142
Case 8 x 142
Drill - 8 x 250
Case 7 x 392
Drill - 6 x 78
Test - 276
Pump - 3000 G P H
Total depth - 502
Pumped at 160
24 Hr Drawdown - 44
Water Salty
C-9
WELL NO 32
Location Km 42 - Lt of centerline 100 meters
Drill - 12 x 108
Case - 10 x 108
Drill - 10 x 212
Drill - 8 x 120
Case - 6 x 340
Case - 8 x 182
Test - 276
Pump - 3000 + G P H
Total depth - 448
Pumped at 160
24 Hr Drawdown - 20
Water Salty
WELL NO 34
Location Km 35 - Lt of centerline 200 meters
Drill - 12 x 230
Install amp Extract Case - 10 x 230
Drill - 8 x 30
Case -6 x 260
Drill - 6 x 160
Case -5 x 324
Case - 8 x 20
Test - 276
Pump -1000 + G P H
Total depth - 420
Pumped at 150
24 Hr Drawdown - 100
Water Salty
C-10
WELL NO 36
Location Km 7 N E along old track from Km 63
Drill - 12 x 180
Case - 10 x 180
Drill - 10 x 231
Case - 8 x 211
Drill- 8x 254
Case - 6 x 245
Test -276
Pump -4000 + G P H
Total depth - 265
Pumped at 180
24 Hr Drawdown - 0
Water Good
C-11
I 3 I 1 I I I I B j APPENDDC D
SYNOPSIS 0 KEY CORRESPONDENCE
3 DURING CONSTRUCTION
I pound I I I 1 I I
On September 1 1973 the Contractor confirmed the
estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts
On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project
On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be
obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated
On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine
On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation
On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension
On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension
On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval
On October 15 1973 the Engineer returned the construction progress schedule for correction
On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim
D-I
On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor
On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project
On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25
On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter
On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents
On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract
On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised
On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading
On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule
On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request
On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period
D-2
On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report
On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material
On August 19 1974 the Contractor submitted an updated construction progress schedule for approval
On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases
On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor
On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor
On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project
On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course
On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country
On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course
On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions
On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule
On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress
D-3
On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract
On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana
On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor
On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion
On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations
On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases
On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season
On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees
On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections
On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project
On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course
On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project
On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract
D-4
October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request
On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor
On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620
On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project
On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y
completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense
On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted
On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project
On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim
On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic
On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor
On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976
D-5
On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time
On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares
On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material
On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500
On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor
On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula
On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana
OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected
On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road
On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road
Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10
On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued
On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced
On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091
On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091
Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued
D-6
I I IUUU U U UU I U
E PROJECT PHOTOGRAPHS
I IIIU U I
I Crushing Plants Surface Course
Pit 2A
Pug Mill Blending Surface Course
Pit 25A
II Surface Course
Pit 25A
UURYPTOERTOSE Pug Mil Blending
Road Reserve Bush Clearing
Km 242
U
Embankment Construction Km 287
IN
Road Construction Water Supply
Km 189
ROADWAY UNDER CONSTRUTION
II
E-2
Stockpiling Material Base Course
Special Embankment Construction Km 232
Watering of Embankment Km 257
ROADWAY UNDER CONSTRUCTION E-3
Culvert Assembly
Twin Culvert with Sand-Cement Pitching
Multiple Culverts with Sand-Cement Pitching
CULVERT INSTALLATIONS E- 4
AT Km 25
AT Km 194
Emergency Landing Strip Kra 2605
FINISHED ROADWAY E- 5
AT Km 286
AT Chobe By-Pass Junction Km 297
I Chobe By-Pass Road Near Ngoma Bridge
E-6FINISHED ROADWAY
I
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (Cont)
Quantity
4
1
4
11Raygo
1
S1 2
ICaterpillar-200KW 3
1
1
1
1
1
3
2 2
2
I
1
2
2
I
1 2
8
1
j 8
1 4
9
1
Description
Caterpillar 966 Loader
Trojan 4000 Loader
Raygo 400A Compactor Vibrator
410A Compactor Vibrator
Vibro Plus Vibrating Sheepsfoot Roller
Bros 10000 Compactor
Bros 6000 Compactor
Generator Caterpillar - 125KW Generator
Little Reddevil Generator
Kholer 3KW Generator
Kholer 2KW Generator
Detroit Diesel Generator (2D-32)
Kholer Generator (5CKM61)
Hobart GR-3 03 Welders w trolley
Worthington 365 Compressor Worthington 160 Compressor
Kellypower Tamper
John Deere 2700 Disc Harrow10 Cut
ohn Deere 1630 Disc Harrow 7 Cut
Worthington WS-55 Rock Drill
Alemite Portable Service Station
Graco Lube Ranger
Worthington Wagon Drill
Layne Bowler Deep Well Pump
Layne Bowler Pump only
4 Centrifugal Pump
2 Centrifugal Pump
Columbian Steel Water Tanks 20000 US Gal
A-2
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (contd)
Quanti
1I Description
Caterpillar Parallel Shank Ripper
2 Fleco Blade Rake
4 Chainsaw
3 Gardner-Denver Compressor
5 Aerotron Radio Transmitters $1203
7 Aerotron Radio Receivers $2 10
16 SSB Radio Transceivers $1340
8 Auxilliary Radio Transceivers $1340
2 Cevy 4 x 4 Pickup Truck 8 Chevy 2 x 4 Pickup Truck
1 L B Smith Cone Crusher
2 Ford 4 x 4 (1164-14C Tractor)
2 Bros Sheepsfoot Roller
1 Hyster Towed Vibratory Compactor
During 1975 and 1976 the Contractor added the following listed equipment
1 Caterpillar No 14 Motor Grader
1 Caterpillar No 966 Loader
1 Trojan No 4000 Loader
1 Cone Crushing Plant 3 ft Standard Fine Bowl with 4 Deck Screens
4 Conveyor Units
A-3
I 1 I I I U I I
APPENDIX B
I I SOILS AND MATERIALS
I I 1 I I I I I 1
APPENDIX B
SOILS AND MATERIALS
(a) General
The road pavement is composed basically of two layers the surface
course and base course overlaying a compacted subgrade or embankment
The sources and volumes of the surface course and base course materials
are indicated in the Materials Utilization Diagrams included as Figures B-i
through B-4
(b) Subgrade
The subgrade soil consists primarily of aeolian fine sand except
for approximately 36 kilometers of the road for which the subgrade is a pan material consisting of clay In the pan areas special 1 Om thick
embankments were constructed with plasticity and fineness control of material
The subgrade and embankment soils were compacted to a minimum of 90
of modified AASHTO compaction The measured mean relative compaction
obtained immediately after compaction of the subgrade was 935 of the modified AASHTO maximum density
(c) Base Course
The majority of the base course materials are derived from aeolian deposits ie fine sand with a trace to some silty clay The
remaining base bourse approximately 15 of the total was obtained from pits having a large component of gravel The 15cm thick base
course is bank run or blended material for which the amounts of fines
and plasticity were controlled The base course materials were obtained from 123 base borrow pits and compacted to a minimum 95 of modified AASHTO density The measured mean relative compaction
directly after construction was 96 of the modified AASHTO maximum
density
(d) Surface Course
The 15cm thick surface course is well graded sandy gravel with
some silty clay fraction The materials for the road segment from
Kilometer 0+000 to Kilometer 173+000 are derived from calcrete deposits
while the materials for the remaining portion are derived from weathered
3-1
bedrock The surface course has controlled gradation plasticity and
durability to obtain sufficient strength to reduce ravelling to a minimum
particularly during the dry season and to resist the wear of traffic
Surface course materials have been obtained by screening crushing
and blending materials from 9 borrow areas and were compacted to a
minimum of 98 of modified AASUTO maximum dry density The comshy
posite properties for each borrow pit are indicated in the Average
Gradation Ourvesincluded as Figures B-5 through B-13 Directly
after construction of the surface course the measured mean relative
compaction was 100 of the modified AASHTO maximum density
B-2
N A TA K A ZUN GU LA RO0A D 70 033 90 CC
00 00 0 0 0+I 03- 30L K
0 I I
M 3 100 0002L [2
_
MATERIALS UTILIZATION DIAGRAM Fiure -I
NATA - KAZUNGULA ROAD
+--- 121
y T
MATERIALS UTILIZATION DIAGRAM Fgure R-Z
NAT A - KAZ UN GULA ROAD
07 2 230K300 220 220 232 252
I 3 3 2
MATERIALS UTILIZATION DIAGRAM Figure 2-3
itLT-m
CHOBE RIVER BY-PASS ROAD 02__ Q___ 0 60 40 - 0 50 0 i
-F-CEL
-Tl J-II II
MATERIALS UTILIZATION DIAGRAM Figure B-4
3 SIEVE ANALYSIS SMI~ia VIII
IY UN In~ VI STAISRS SIEVE NUMBfh SUE9 - usuLguNuus O-- aoIiUl- I1
11I a to to 0 i oIIIa lf I
II
SN Cu ye B
II N
o
i B _ ___~ N II 1 l s - Curi e At-
I 2 I a 6 4 2 i5 4 3 2 a -
GRAIN I IZE MILTERS
SILT AND CLAY SOILS GRAVEL SAND
I NUMBE1RSAMPLE DEPTH LL KIE IPTIONIELEV P1 ECIT
A Composit 38 19 CrusherAverage Runof 192 samples
B Composit 33 17 Surface Course Blend asAverage of 236 samples placed
MDD 1960 kgm Los Angeles Abrasion = 42 Average Blend Added 15=
REPUBLIC OF BOTSWANA TI PPETTS-ASSETT-NcCAIThY-STRATTOU MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY BOTSWANA-ZAMBIA GRAIN SIZE DISTRIBUTION BY DmArTE Q76HIGHWAY j PIT 2A DOi FIGURE B-5
E ANLYSISSIEVE NALYSIS NI
OPEING - In jS PhIMS-SEVE iNRh3EN son - MILLIMETER
V11 6plusmn SSIEVE
6 i S 0-4 0 10 miUS) 3055 3 001mesa a
9 I I I - -
Crye B
S bull
1TCrii INN20 1 e A- NI deg I FIK 46591 2 a045 4 2 1115 5 2 6
GRIISZ IN MILLIMETERS
COACE iE NtIUM FI SILT AD CLAY SOILSGRAVEL SAND
5r IBSAMPLE DEPTH ELEV LLP1
A Composite 28 10 Crusher Run Average of 229 samples
B Composite 28 11 Surface Course Blend as Placed Average of 58 samples
2050 kgm3 Averaoe Blend Added shy
TIPPETTS-ASETT-NCCARTIY-STATTONREPUBLIC OF BOTSWANA NEW YORK NY
MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS
BRAIN SIZE DISTRIBUTION BY NCZ jAATE9 876BOTSWANA-ZAMBIA
HIGHWAY PIT 14 amp 14A OWN FIGURE B-6
i
S ANALYSIS 01 ANALYSIS
SIEVE - n -IIII- SIZ-MII- - IN i
It a s 1
Ue a -- e B
- 1 -I-[_I - I I I
6l51 10 8 $514 1 O is 05I I 21 8GANSZNILMTR OA RE Filo 9OA-1i 1DI UM F log S ILT AND CLAY SO ILS
GRAVEL nSAND
E--l I UNEASMPLEDEPlTH ELEV LL P1 KWKIPTION
A Composite 36 19 Crusher Run
Average of 116 Samples
B Composite 36 15 Surface Course Blend Average of 138 samples
H GHWA E SA 18 SILT ANDURCLA-SIL
3kgm Los Angeles Abrasion 28
Av agau Pnd AAd = 907 ITI UETT$-ABBTT-NcentcentARTNY-STRATTON
NEW YORK NY
REPUBLIC OF BOTSWANA
MINISTRY OF WORKS amp COM24UNICATIONSIT NINEERS1
I I MGIELI7 I 1 8AIIGIWAE
I
4
SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU
V 1 Oe 001l
- -r--I-I -- I
S E- -IN S
KI zz7llfl$zIIIti z I
low560
20
2
IGRAIN SIZE IN MILLIMETERS
COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS
GRAVEL SAND
SAMP DEPTH ELEV L P1 0NBERIIPTI
A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples
B Composit( 28 13 Surface Course Blend as Placed
Average of 85 samples
Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA
REPUBLIC OF BOTSWANA TI EfTTS-AIETT-NCARTY-STRATTOi ITTqTPI yen O WOVQ A n rn WTraTTn~lz ENGINEERS NEW YOlK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8
-D IUR IB
II SIEVE ANALYIIS 1411 I LYIlMll
[urn $11min - I I ITUSE IVV I - mampINimums1 -l0 n 001
a1 i 4 is s 0 aL w I 2 0665S a a 4 i 0i
-7sl
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I RI IE IN M IEER
CfliEI FIN g o au SIT SILFIN M40 5C o432 14593 ry B6
ver 7 samples
NUMBE NERPI
Ay I GRAIN SIZE IN MILLIMETR
5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND
A Q A- Aii dd d~A
IMUBEIRIIIIPIi
3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables
B Composit 26 13 Surface Course BlendU as Placed
Average of 79 samples
AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =
REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9
SIEVE ANALYSIS IMmv na awLYoia
SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I
I- 01 001
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20
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$05 9 2
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86543
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GRAIN SIZE IN MILLIMETERS
1 111I
NU BE GRAVEL
COARSE
I
MEDIUM
I SAND
FSILT AND CLAY SOILS
SAMPLE4 DEP EEY 1 SCBI1PTIORI
A
B
Composite
Composite
38
26
17
13
Crusher Run Basaltic Aggregate
Average of 176 samples
Surface Course Blend -s Placed Average of 58 samples
Average MDD = 2135 kgm Los Angeles Abrasion = 38
Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY
WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971
3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10
SIEVE ANIALYSIS lNVINI1111 ANALYSIS
I EV OPE IN - INI8 TOSIIEENN1-MLII
I
I - - i ii 0
I GRI SIZEto N OILS 1
I ANDLI IS
G VELIZE I
IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL
-APL ESN
DEPTH ELEY LL PI DESCRIPTIONNUSMBE
3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples
B Composite 26 13 Surface Course Blend as Placed Average of 58 samples
Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34
Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY
BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11
___ I
SIEVE ANALYSIS W11 ANKEm SIS
SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS
01 001
sodego
i i
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6 559 2 a65 3 2 1 6532 S
II GRAIN SIZE INMILLIMETERS
=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL
GRAVEL SN
I SAMPE DEPTH ELEV LL P)S DESCRIPTION
A omposite 28 10 Crusher Run
SAverage of 72 samples
B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples
Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20
REPUBLICUINISTRY 0OF OF
BOTSWANA WORKS amp COMMUNIGTIONS
TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12
I
SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM
-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U
I _
I1li
Ia _ Cu ve
N IC A11
IQI II
1 IG S IIIMETE
I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND
SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION
A Composite 34 15 Crusher Run Average of 74 samples
B Composite 29 12 Surface Course Blend as Placed
Average of 42 samples
MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15
REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA
ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N
NEW sy cKA
YORK NYT E-2 5 1 7 7
HIGHWAY PIT 32A Mwe FIGURE B-13
I I I I I I I I
APPENDIX C
I WATER WELL LOCATIONS
I I I I I I I I I
APPENDIX C WATER WELL LOCATIONS
WELL NO 3
Location Km 171 Lt of centerline 200 meters
Drill - 6 x 392
Ream - 8 x 92
Case - 6 x 84
Test - 24 Hours - 276
Pump 6000 G P H
Total depth - 392
Pumped at 150
24 Hr Drawdown - 3
Water Good
WELL NO 4
Location Km 175 - Lt of centerline 100 meters
Drill - 6 x 380
Ream - 8 x 82
Case - 7 x 82
Test - 276
Pump 1800 G P H
Total depth - 380
Pumped at 200
Drawdown 24 Hr - 100
Water Good
WELL NO 5 (Govt No 2436
Location Km 178 - Lt of centerline 115 meters
Test -276
Pump - 1400 G P H
Total depth - 160
Pumped at 140
24 Hr Drawdown - 60
Water Good C-1
WELL NO 6
Location Km 183 - Lt of centerline 60 meters
Drill - 6 x 436
Ream - 8 x 86
Case - 7 x 86
Test - 276
Pump - 500 G P H
Total depth - 436
Pumped at 250
24 Hr Drawdown - 150
Water Good
WELL NO 7 - (Govt No 2435)
Location Km 189 - Rt of centerline 100 meters
Clean amp Test
Pump - 6000 G P H
Pumped at 140
24 Hr Drawdown - 10
Water Good
WELL NO 14
Location Km 252 - Lt of centerline 100 meters
Drill - 6 x 250
Ream - 8 x 53
Case - 6 x 53
Test - 276
Pump - 6000 G P H
Total depth - 250
Pumped at 150
24 Hr Drawdown - 6
Water Good
C-2
WELL AT KM 256 MAINTENANCE FACILITY NO 3
Location Km 256 - Lt of centerline 200 meters
Depth - 100 feet
Water Rest Level - 42 feet
Depth Pump Set - 70 feet
24 Hr Test - 1800 G P H
WELL NO 15
Location Km 245 - Rt of centerline 40 meters
Drill - 6 x 260
Ream - 8 x 54
Case - 54
Test -276
Pump - 1500 G P H
Total depth - 260
Pumped at 200
24 Hr Drawdown - 140
Water Good
WELL NO 16 Location Km 236 -Rt of centerline 30 meters
Drill - 6 x 250
Ream - 8 x 22
Case - 6 x 22
Test - 276
Pump -6000 G P H
Total depth - 288
Pumped at 150
24 Hr Drawdown - 10
Water Good
C-3
WELL NO 17
Location Km 224 - Rt of centerline 30 meters
Drill - 10 x 89
Case - 8 x 85
Drill- 8x 43
Drill - 6 x 38
Case -6 x 132
Test - 276
Pump -2000 G P H
Total Depth - 170
Pumped at 100
24 Hr Drawdown - 11
Water Good
WELL NO 18
Location Km 217 - Lt of centerline 200 meters
Drill -i0 x 70
Case - 7 x 70
Drill - 7 x 52
Drill - 6 x 88
Case - 6 x 122
Test - 276
Pump 2400 G P H
Total depth - 210
Pumped at 200
24 Hr Drawdown - 140
Water Good
C-4
WELL NO 19
Location Km 213 - Lt of centerline 100 meters
Drill - 10 x 44
Case - 8 x 40
Drill - 8 x 76
Drill 6 x 130
Case - 6 x 120
Test - 276
Pump - 6000 G P H
Total depth - 210
Pumped at 60
24 Hr Drawdown - 10
Water Good
WELL NO 20
Location Km 143 - Rt of centerline 100 meters
Drill - 10 x 240
Case - 7 x 220
Drill -6 x 378
Case - 6 x 240
Case - 5 x 240
Test - 276
Pump -1500 G P H
Total depth - 618
Pumped at 460
24 Hr Drawdown - 105
Water slightly salty to taste but drinkable
C-5
WELL NO 23
Location Km 139 - Lt of centerline 100 meters
Drill - 12 x 290
Place amp Extract Case - 10 x 290
Drill - 8 x 30
Drill - 6 x 40
Case - 8 x 290
Case - 6 x 320
Test - 276
Pump - 1200 G P H
Total depth - 360
Pumped at 330
24 Hr Drawdown - 120
Water salty
WELL NO 24
Location Km 135 - Lt of centerline 500 meters
Drill - 12 x 270
Drill - 10 x 10
Case - 10 x 270
Drill -8 x 30
Case - 8 x 290
Case -6 x 310
Case - 5 x 320
Test -276
Pump -4000 +G P H
Total depth - 320
Pumped at 270
24 Hr Drawdown - 2
Water Salty
C-6
I
5
WELL KM 205 MAINTENANCE FACILITY NO 2
Location Km 105 - Lt of centerline 40 meters
Depth - 302 feet
~ Water Rest Level - 82 feet
Depth Pump Set - 150 feet
48 Hr Test - 3000 + G P H
WELL NO 26
Location Km 82 - Lt of centerline 100 meters
Drill - 12 x 145
5 -8 x145
Drill - 8 x 23
-Case
I Drill - 7 x 10
Case - 7 x 168
I Case - 6 x178
Test - 276
Pump - 1200 G P H
Total depth - 306
I Pumped at 140
24 Hr Drawdown - 35
I Water Good
C
I 0-7
WELL NO 27
Location Km 77 - Lt of centerline 100 meters
Drill - 12 x 174
Install amp Extract Case - 10 x 174
Case - 8 x 174
Drill - 9 x 68
Drill - 8 x 64
Case - 7 x 242
Case - 6 x 306
Test - 276
Pump - 4000 + G P H
Total Depth - 306
Pumpe at 240
24 Hr Drawdown - 0
Water Good
WELL NO 28- (Govt No 2465)
Location Km 63 - Rt of centerline 100 meters
Clean amp Extract Case - 300
Ream - 10 x 98
Ream - 8x 27
Ream - 6 x 12
Case - 8 x 98
Case - 6 x 125
Test - 276
Pump - 1000 + G P H
Total depth - 137
Pumped at 130
24 Hr Drawdown - 33
Water Good
C-8
WELL NO 30
Location Km 47 - Rt of centerline 400 meters
Drill - 12 x 132
Case - 10 x 89
Install amp Extract Case - 12 x 43
Drill - 10 x 117
Case - 7 x 242
Drill - 6 x 183
Install amp Extract Case - 6 x 408
Test - 276
Pump - 1000 G P H
Total depth - 408
Pumped at 160
24 Hr Drawdown - 77
Water Salty
WELL NO 31
- Lt of centerline 200 metersLocation Km 44
Drill - 12 x 110
Case - 10 x 100
Drill - 10 x 142
Case 8 x 142
Drill - 8 x 250
Case 7 x 392
Drill - 6 x 78
Test - 276
Pump - 3000 G P H
Total depth - 502
Pumped at 160
24 Hr Drawdown - 44
Water Salty
C-9
WELL NO 32
Location Km 42 - Lt of centerline 100 meters
Drill - 12 x 108
Case - 10 x 108
Drill - 10 x 212
Drill - 8 x 120
Case - 6 x 340
Case - 8 x 182
Test - 276
Pump - 3000 + G P H
Total depth - 448
Pumped at 160
24 Hr Drawdown - 20
Water Salty
WELL NO 34
Location Km 35 - Lt of centerline 200 meters
Drill - 12 x 230
Install amp Extract Case - 10 x 230
Drill - 8 x 30
Case -6 x 260
Drill - 6 x 160
Case -5 x 324
Case - 8 x 20
Test - 276
Pump -1000 + G P H
Total depth - 420
Pumped at 150
24 Hr Drawdown - 100
Water Salty
C-10
WELL NO 36
Location Km 7 N E along old track from Km 63
Drill - 12 x 180
Case - 10 x 180
Drill - 10 x 231
Case - 8 x 211
Drill- 8x 254
Case - 6 x 245
Test -276
Pump -4000 + G P H
Total depth - 265
Pumped at 180
24 Hr Drawdown - 0
Water Good
C-11
I 3 I 1 I I I I B j APPENDDC D
SYNOPSIS 0 KEY CORRESPONDENCE
3 DURING CONSTRUCTION
I pound I I I 1 I I
On September 1 1973 the Contractor confirmed the
estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts
On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project
On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be
obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated
On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine
On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation
On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension
On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension
On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval
On October 15 1973 the Engineer returned the construction progress schedule for correction
On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim
D-I
On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor
On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project
On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25
On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter
On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents
On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract
On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised
On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading
On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule
On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request
On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period
D-2
On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report
On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material
On August 19 1974 the Contractor submitted an updated construction progress schedule for approval
On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases
On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor
On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor
On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project
On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course
On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country
On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course
On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions
On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule
On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress
D-3
On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract
On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana
On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor
On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion
On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations
On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases
On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season
On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees
On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections
On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project
On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course
On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project
On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract
D-4
October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request
On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor
On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620
On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project
On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y
completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense
On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted
On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project
On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim
On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic
On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor
On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976
D-5
On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time
On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares
On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material
On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500
On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor
On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula
On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana
OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected
On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road
On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road
Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10
On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued
On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced
On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091
On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091
Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued
D-6
I I IUUU U U UU I U
E PROJECT PHOTOGRAPHS
I IIIU U I
I Crushing Plants Surface Course
Pit 2A
Pug Mill Blending Surface Course
Pit 25A
II Surface Course
Pit 25A
UURYPTOERTOSE Pug Mil Blending
Road Reserve Bush Clearing
Km 242
U
Embankment Construction Km 287
IN
Road Construction Water Supply
Km 189
ROADWAY UNDER CONSTRUTION
II
E-2
Stockpiling Material Base Course
Special Embankment Construction Km 232
Watering of Embankment Km 257
ROADWAY UNDER CONSTRUCTION E-3
Culvert Assembly
Twin Culvert with Sand-Cement Pitching
Multiple Culverts with Sand-Cement Pitching
CULVERT INSTALLATIONS E- 4
AT Km 25
AT Km 194
Emergency Landing Strip Kra 2605
FINISHED ROADWAY E- 5
AT Km 286
AT Chobe By-Pass Junction Km 297
I Chobe By-Pass Road Near Ngoma Bridge
E-6FINISHED ROADWAY
EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (contd)
Quanti
1I Description
Caterpillar Parallel Shank Ripper
2 Fleco Blade Rake
4 Chainsaw
3 Gardner-Denver Compressor
5 Aerotron Radio Transmitters $1203
7 Aerotron Radio Receivers $2 10
16 SSB Radio Transceivers $1340
8 Auxilliary Radio Transceivers $1340
2 Cevy 4 x 4 Pickup Truck 8 Chevy 2 x 4 Pickup Truck
1 L B Smith Cone Crusher
2 Ford 4 x 4 (1164-14C Tractor)
2 Bros Sheepsfoot Roller
1 Hyster Towed Vibratory Compactor
During 1975 and 1976 the Contractor added the following listed equipment
1 Caterpillar No 14 Motor Grader
1 Caterpillar No 966 Loader
1 Trojan No 4000 Loader
1 Cone Crushing Plant 3 ft Standard Fine Bowl with 4 Deck Screens
4 Conveyor Units
A-3
I 1 I I I U I I
APPENDIX B
I I SOILS AND MATERIALS
I I 1 I I I I I 1
APPENDIX B
SOILS AND MATERIALS
(a) General
The road pavement is composed basically of two layers the surface
course and base course overlaying a compacted subgrade or embankment
The sources and volumes of the surface course and base course materials
are indicated in the Materials Utilization Diagrams included as Figures B-i
through B-4
(b) Subgrade
The subgrade soil consists primarily of aeolian fine sand except
for approximately 36 kilometers of the road for which the subgrade is a pan material consisting of clay In the pan areas special 1 Om thick
embankments were constructed with plasticity and fineness control of material
The subgrade and embankment soils were compacted to a minimum of 90
of modified AASHTO compaction The measured mean relative compaction
obtained immediately after compaction of the subgrade was 935 of the modified AASHTO maximum density
(c) Base Course
The majority of the base course materials are derived from aeolian deposits ie fine sand with a trace to some silty clay The
remaining base bourse approximately 15 of the total was obtained from pits having a large component of gravel The 15cm thick base
course is bank run or blended material for which the amounts of fines
and plasticity were controlled The base course materials were obtained from 123 base borrow pits and compacted to a minimum 95 of modified AASHTO density The measured mean relative compaction
directly after construction was 96 of the modified AASHTO maximum
density
(d) Surface Course
The 15cm thick surface course is well graded sandy gravel with
some silty clay fraction The materials for the road segment from
Kilometer 0+000 to Kilometer 173+000 are derived from calcrete deposits
while the materials for the remaining portion are derived from weathered
3-1
bedrock The surface course has controlled gradation plasticity and
durability to obtain sufficient strength to reduce ravelling to a minimum
particularly during the dry season and to resist the wear of traffic
Surface course materials have been obtained by screening crushing
and blending materials from 9 borrow areas and were compacted to a
minimum of 98 of modified AASUTO maximum dry density The comshy
posite properties for each borrow pit are indicated in the Average
Gradation Ourvesincluded as Figures B-5 through B-13 Directly
after construction of the surface course the measured mean relative
compaction was 100 of the modified AASHTO maximum density
B-2
N A TA K A ZUN GU LA RO0A D 70 033 90 CC
00 00 0 0 0+I 03- 30L K
0 I I
M 3 100 0002L [2
_
MATERIALS UTILIZATION DIAGRAM Fiure -I
NATA - KAZUNGULA ROAD
+--- 121
y T
MATERIALS UTILIZATION DIAGRAM Fgure R-Z
NAT A - KAZ UN GULA ROAD
07 2 230K300 220 220 232 252
I 3 3 2
MATERIALS UTILIZATION DIAGRAM Figure 2-3
itLT-m
CHOBE RIVER BY-PASS ROAD 02__ Q___ 0 60 40 - 0 50 0 i
-F-CEL
-Tl J-II II
MATERIALS UTILIZATION DIAGRAM Figure B-4
3 SIEVE ANALYSIS SMI~ia VIII
IY UN In~ VI STAISRS SIEVE NUMBfh SUE9 - usuLguNuus O-- aoIiUl- I1
11I a to to 0 i oIIIa lf I
II
SN Cu ye B
II N
o
i B _ ___~ N II 1 l s - Curi e At-
I 2 I a 6 4 2 i5 4 3 2 a -
GRAIN I IZE MILTERS
SILT AND CLAY SOILS GRAVEL SAND
I NUMBE1RSAMPLE DEPTH LL KIE IPTIONIELEV P1 ECIT
A Composit 38 19 CrusherAverage Runof 192 samples
B Composit 33 17 Surface Course Blend asAverage of 236 samples placed
MDD 1960 kgm Los Angeles Abrasion = 42 Average Blend Added 15=
REPUBLIC OF BOTSWANA TI PPETTS-ASSETT-NcCAIThY-STRATTOU MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY BOTSWANA-ZAMBIA GRAIN SIZE DISTRIBUTION BY DmArTE Q76HIGHWAY j PIT 2A DOi FIGURE B-5
E ANLYSISSIEVE NALYSIS NI
OPEING - In jS PhIMS-SEVE iNRh3EN son - MILLIMETER
V11 6plusmn SSIEVE
6 i S 0-4 0 10 miUS) 3055 3 001mesa a
9 I I I - -
Crye B
S bull
1TCrii INN20 1 e A- NI deg I FIK 46591 2 a045 4 2 1115 5 2 6
GRIISZ IN MILLIMETERS
COACE iE NtIUM FI SILT AD CLAY SOILSGRAVEL SAND
5r IBSAMPLE DEPTH ELEV LLP1
A Composite 28 10 Crusher Run Average of 229 samples
B Composite 28 11 Surface Course Blend as Placed Average of 58 samples
2050 kgm3 Averaoe Blend Added shy
TIPPETTS-ASETT-NCCARTIY-STATTONREPUBLIC OF BOTSWANA NEW YORK NY
MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS
BRAIN SIZE DISTRIBUTION BY NCZ jAATE9 876BOTSWANA-ZAMBIA
HIGHWAY PIT 14 amp 14A OWN FIGURE B-6
i
S ANALYSIS 01 ANALYSIS
SIEVE - n -IIII- SIZ-MII- - IN i
It a s 1
Ue a -- e B
- 1 -I-[_I - I I I
6l51 10 8 $514 1 O is 05I I 21 8GANSZNILMTR OA RE Filo 9OA-1i 1DI UM F log S ILT AND CLAY SO ILS
GRAVEL nSAND
E--l I UNEASMPLEDEPlTH ELEV LL P1 KWKIPTION
A Composite 36 19 Crusher Run
Average of 116 Samples
B Composite 36 15 Surface Course Blend Average of 138 samples
H GHWA E SA 18 SILT ANDURCLA-SIL
3kgm Los Angeles Abrasion 28
Av agau Pnd AAd = 907 ITI UETT$-ABBTT-NcentcentARTNY-STRATTON
NEW YORK NY
REPUBLIC OF BOTSWANA
MINISTRY OF WORKS amp COM24UNICATIONSIT NINEERS1
I I MGIELI7 I 1 8AIIGIWAE
I
4
SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU
V 1 Oe 001l
- -r--I-I -- I
S E- -IN S
KI zz7llfl$zIIIti z I
low560
20
2
IGRAIN SIZE IN MILLIMETERS
COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS
GRAVEL SAND
SAMP DEPTH ELEV L P1 0NBERIIPTI
A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples
B Composit( 28 13 Surface Course Blend as Placed
Average of 85 samples
Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA
REPUBLIC OF BOTSWANA TI EfTTS-AIETT-NCARTY-STRATTOi ITTqTPI yen O WOVQ A n rn WTraTTn~lz ENGINEERS NEW YOlK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8
-D IUR IB
II SIEVE ANALYIIS 1411 I LYIlMll
[urn $11min - I I ITUSE IVV I - mampINimums1 -l0 n 001
a1 i 4 is s 0 aL w I 2 0665S a a 4 i 0i
-7sl
96---
I RI IE IN M IEER
CfliEI FIN g o au SIT SILFIN M40 5C o432 14593 ry B6
ver 7 samples
NUMBE NERPI
Ay I GRAIN SIZE IN MILLIMETR
5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND
A Q A- Aii dd d~A
IMUBEIRIIIIPIi
3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables
B Composit 26 13 Surface Course BlendU as Placed
Average of 79 samples
AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =
REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9
SIEVE ANALYSIS IMmv na awLYoia
SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I
I- 01 001
e---__
Ir1 -NIP_]
20
OA
$05 9 2
E
I
86543
I
7tN
2 1 65
_OAlEED t
5 2
FN
I
GRAIN SIZE IN MILLIMETERS
1 111I
NU BE GRAVEL
COARSE
I
MEDIUM
I SAND
FSILT AND CLAY SOILS
SAMPLE4 DEP EEY 1 SCBI1PTIORI
A
B
Composite
Composite
38
26
17
13
Crusher Run Basaltic Aggregate
Average of 176 samples
Surface Course Blend -s Placed Average of 58 samples
Average MDD = 2135 kgm Los Angeles Abrasion = 38
Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY
WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971
3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10
SIEVE ANIALYSIS lNVINI1111 ANALYSIS
I EV OPE IN - INI8 TOSIIEENN1-MLII
I
I - - i ii 0
I GRI SIZEto N OILS 1
I ANDLI IS
G VELIZE I
IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL
-APL ESN
DEPTH ELEY LL PI DESCRIPTIONNUSMBE
3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples
B Composite 26 13 Surface Course Blend as Placed Average of 58 samples
Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34
Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY
BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11
___ I
SIEVE ANALYSIS W11 ANKEm SIS
SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS
01 001
sodego
i i
U Ae
6 559 2 a65 3 2 1 6532 S
II GRAIN SIZE INMILLIMETERS
=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL
GRAVEL SN
I SAMPE DEPTH ELEV LL P)S DESCRIPTION
A omposite 28 10 Crusher Run
SAverage of 72 samples
B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples
Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20
REPUBLICUINISTRY 0OF OF
BOTSWANA WORKS amp COMMUNIGTIONS
TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12
I
SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM
-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U
I _
I1li
Ia _ Cu ve
N IC A11
IQI II
1 IG S IIIMETE
I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND
SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION
A Composite 34 15 Crusher Run Average of 74 samples
B Composite 29 12 Surface Course Blend as Placed
Average of 42 samples
MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15
REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA
ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N
NEW sy cKA
YORK NYT E-2 5 1 7 7
HIGHWAY PIT 32A Mwe FIGURE B-13
I I I I I I I I
APPENDIX C
I WATER WELL LOCATIONS
I I I I I I I I I
APPENDIX C WATER WELL LOCATIONS
WELL NO 3
Location Km 171 Lt of centerline 200 meters
Drill - 6 x 392
Ream - 8 x 92
Case - 6 x 84
Test - 24 Hours - 276
Pump 6000 G P H
Total depth - 392
Pumped at 150
24 Hr Drawdown - 3
Water Good
WELL NO 4
Location Km 175 - Lt of centerline 100 meters
Drill - 6 x 380
Ream - 8 x 82
Case - 7 x 82
Test - 276
Pump 1800 G P H
Total depth - 380
Pumped at 200
Drawdown 24 Hr - 100
Water Good
WELL NO 5 (Govt No 2436
Location Km 178 - Lt of centerline 115 meters
Test -276
Pump - 1400 G P H
Total depth - 160
Pumped at 140
24 Hr Drawdown - 60
Water Good C-1
WELL NO 6
Location Km 183 - Lt of centerline 60 meters
Drill - 6 x 436
Ream - 8 x 86
Case - 7 x 86
Test - 276
Pump - 500 G P H
Total depth - 436
Pumped at 250
24 Hr Drawdown - 150
Water Good
WELL NO 7 - (Govt No 2435)
Location Km 189 - Rt of centerline 100 meters
Clean amp Test
Pump - 6000 G P H
Pumped at 140
24 Hr Drawdown - 10
Water Good
WELL NO 14
Location Km 252 - Lt of centerline 100 meters
Drill - 6 x 250
Ream - 8 x 53
Case - 6 x 53
Test - 276
Pump - 6000 G P H
Total depth - 250
Pumped at 150
24 Hr Drawdown - 6
Water Good
C-2
WELL AT KM 256 MAINTENANCE FACILITY NO 3
Location Km 256 - Lt of centerline 200 meters
Depth - 100 feet
Water Rest Level - 42 feet
Depth Pump Set - 70 feet
24 Hr Test - 1800 G P H
WELL NO 15
Location Km 245 - Rt of centerline 40 meters
Drill - 6 x 260
Ream - 8 x 54
Case - 54
Test -276
Pump - 1500 G P H
Total depth - 260
Pumped at 200
24 Hr Drawdown - 140
Water Good
WELL NO 16 Location Km 236 -Rt of centerline 30 meters
Drill - 6 x 250
Ream - 8 x 22
Case - 6 x 22
Test - 276
Pump -6000 G P H
Total depth - 288
Pumped at 150
24 Hr Drawdown - 10
Water Good
C-3
WELL NO 17
Location Km 224 - Rt of centerline 30 meters
Drill - 10 x 89
Case - 8 x 85
Drill- 8x 43
Drill - 6 x 38
Case -6 x 132
Test - 276
Pump -2000 G P H
Total Depth - 170
Pumped at 100
24 Hr Drawdown - 11
Water Good
WELL NO 18
Location Km 217 - Lt of centerline 200 meters
Drill -i0 x 70
Case - 7 x 70
Drill - 7 x 52
Drill - 6 x 88
Case - 6 x 122
Test - 276
Pump 2400 G P H
Total depth - 210
Pumped at 200
24 Hr Drawdown - 140
Water Good
C-4
WELL NO 19
Location Km 213 - Lt of centerline 100 meters
Drill - 10 x 44
Case - 8 x 40
Drill - 8 x 76
Drill 6 x 130
Case - 6 x 120
Test - 276
Pump - 6000 G P H
Total depth - 210
Pumped at 60
24 Hr Drawdown - 10
Water Good
WELL NO 20
Location Km 143 - Rt of centerline 100 meters
Drill - 10 x 240
Case - 7 x 220
Drill -6 x 378
Case - 6 x 240
Case - 5 x 240
Test - 276
Pump -1500 G P H
Total depth - 618
Pumped at 460
24 Hr Drawdown - 105
Water slightly salty to taste but drinkable
C-5
WELL NO 23
Location Km 139 - Lt of centerline 100 meters
Drill - 12 x 290
Place amp Extract Case - 10 x 290
Drill - 8 x 30
Drill - 6 x 40
Case - 8 x 290
Case - 6 x 320
Test - 276
Pump - 1200 G P H
Total depth - 360
Pumped at 330
24 Hr Drawdown - 120
Water salty
WELL NO 24
Location Km 135 - Lt of centerline 500 meters
Drill - 12 x 270
Drill - 10 x 10
Case - 10 x 270
Drill -8 x 30
Case - 8 x 290
Case -6 x 310
Case - 5 x 320
Test -276
Pump -4000 +G P H
Total depth - 320
Pumped at 270
24 Hr Drawdown - 2
Water Salty
C-6
I
5
WELL KM 205 MAINTENANCE FACILITY NO 2
Location Km 105 - Lt of centerline 40 meters
Depth - 302 feet
~ Water Rest Level - 82 feet
Depth Pump Set - 150 feet
48 Hr Test - 3000 + G P H
WELL NO 26
Location Km 82 - Lt of centerline 100 meters
Drill - 12 x 145
5 -8 x145
Drill - 8 x 23
-Case
I Drill - 7 x 10
Case - 7 x 168
I Case - 6 x178
Test - 276
Pump - 1200 G P H
Total depth - 306
I Pumped at 140
24 Hr Drawdown - 35
I Water Good
C
I 0-7
WELL NO 27
Location Km 77 - Lt of centerline 100 meters
Drill - 12 x 174
Install amp Extract Case - 10 x 174
Case - 8 x 174
Drill - 9 x 68
Drill - 8 x 64
Case - 7 x 242
Case - 6 x 306
Test - 276
Pump - 4000 + G P H
Total Depth - 306
Pumpe at 240
24 Hr Drawdown - 0
Water Good
WELL NO 28- (Govt No 2465)
Location Km 63 - Rt of centerline 100 meters
Clean amp Extract Case - 300
Ream - 10 x 98
Ream - 8x 27
Ream - 6 x 12
Case - 8 x 98
Case - 6 x 125
Test - 276
Pump - 1000 + G P H
Total depth - 137
Pumped at 130
24 Hr Drawdown - 33
Water Good
C-8
WELL NO 30
Location Km 47 - Rt of centerline 400 meters
Drill - 12 x 132
Case - 10 x 89
Install amp Extract Case - 12 x 43
Drill - 10 x 117
Case - 7 x 242
Drill - 6 x 183
Install amp Extract Case - 6 x 408
Test - 276
Pump - 1000 G P H
Total depth - 408
Pumped at 160
24 Hr Drawdown - 77
Water Salty
WELL NO 31
- Lt of centerline 200 metersLocation Km 44
Drill - 12 x 110
Case - 10 x 100
Drill - 10 x 142
Case 8 x 142
Drill - 8 x 250
Case 7 x 392
Drill - 6 x 78
Test - 276
Pump - 3000 G P H
Total depth - 502
Pumped at 160
24 Hr Drawdown - 44
Water Salty
C-9
WELL NO 32
Location Km 42 - Lt of centerline 100 meters
Drill - 12 x 108
Case - 10 x 108
Drill - 10 x 212
Drill - 8 x 120
Case - 6 x 340
Case - 8 x 182
Test - 276
Pump - 3000 + G P H
Total depth - 448
Pumped at 160
24 Hr Drawdown - 20
Water Salty
WELL NO 34
Location Km 35 - Lt of centerline 200 meters
Drill - 12 x 230
Install amp Extract Case - 10 x 230
Drill - 8 x 30
Case -6 x 260
Drill - 6 x 160
Case -5 x 324
Case - 8 x 20
Test - 276
Pump -1000 + G P H
Total depth - 420
Pumped at 150
24 Hr Drawdown - 100
Water Salty
C-10
WELL NO 36
Location Km 7 N E along old track from Km 63
Drill - 12 x 180
Case - 10 x 180
Drill - 10 x 231
Case - 8 x 211
Drill- 8x 254
Case - 6 x 245
Test -276
Pump -4000 + G P H
Total depth - 265
Pumped at 180
24 Hr Drawdown - 0
Water Good
C-11
I 3 I 1 I I I I B j APPENDDC D
SYNOPSIS 0 KEY CORRESPONDENCE
3 DURING CONSTRUCTION
I pound I I I 1 I I
On September 1 1973 the Contractor confirmed the
estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts
On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project
On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be
obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated
On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine
On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation
On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension
On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension
On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval
On October 15 1973 the Engineer returned the construction progress schedule for correction
On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim
D-I
On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor
On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project
On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25
On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter
On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents
On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract
On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised
On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading
On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule
On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request
On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period
D-2
On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report
On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material
On August 19 1974 the Contractor submitted an updated construction progress schedule for approval
On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases
On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor
On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor
On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project
On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course
On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country
On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course
On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions
On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule
On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress
D-3
On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract
On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana
On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor
On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion
On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations
On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases
On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season
On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees
On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections
On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project
On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course
On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project
On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract
D-4
October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request
On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor
On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620
On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project
On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y
completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense
On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted
On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project
On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim
On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic
On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor
On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976
D-5
On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time
On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares
On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material
On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500
On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor
On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula
On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana
OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected
On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road
On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road
Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10
On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued
On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced
On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091
On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091
Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued
D-6
I I IUUU U U UU I U
E PROJECT PHOTOGRAPHS
I IIIU U I
I Crushing Plants Surface Course
Pit 2A
Pug Mill Blending Surface Course
Pit 25A
II Surface Course
Pit 25A
UURYPTOERTOSE Pug Mil Blending
Road Reserve Bush Clearing
Km 242
U
Embankment Construction Km 287
IN
Road Construction Water Supply
Km 189
ROADWAY UNDER CONSTRUTION
II
E-2
Stockpiling Material Base Course
Special Embankment Construction Km 232
Watering of Embankment Km 257
ROADWAY UNDER CONSTRUCTION E-3
Culvert Assembly
Twin Culvert with Sand-Cement Pitching
Multiple Culverts with Sand-Cement Pitching
CULVERT INSTALLATIONS E- 4
AT Km 25
AT Km 194
Emergency Landing Strip Kra 2605
FINISHED ROADWAY E- 5
AT Km 286
AT Chobe By-Pass Junction Km 297
I Chobe By-Pass Road Near Ngoma Bridge
E-6FINISHED ROADWAY
I 1 I I I U I I
APPENDIX B
I I SOILS AND MATERIALS
I I 1 I I I I I 1
APPENDIX B
SOILS AND MATERIALS
(a) General
The road pavement is composed basically of two layers the surface
course and base course overlaying a compacted subgrade or embankment
The sources and volumes of the surface course and base course materials
are indicated in the Materials Utilization Diagrams included as Figures B-i
through B-4
(b) Subgrade
The subgrade soil consists primarily of aeolian fine sand except
for approximately 36 kilometers of the road for which the subgrade is a pan material consisting of clay In the pan areas special 1 Om thick
embankments were constructed with plasticity and fineness control of material
The subgrade and embankment soils were compacted to a minimum of 90
of modified AASHTO compaction The measured mean relative compaction
obtained immediately after compaction of the subgrade was 935 of the modified AASHTO maximum density
(c) Base Course
The majority of the base course materials are derived from aeolian deposits ie fine sand with a trace to some silty clay The
remaining base bourse approximately 15 of the total was obtained from pits having a large component of gravel The 15cm thick base
course is bank run or blended material for which the amounts of fines
and plasticity were controlled The base course materials were obtained from 123 base borrow pits and compacted to a minimum 95 of modified AASHTO density The measured mean relative compaction
directly after construction was 96 of the modified AASHTO maximum
density
(d) Surface Course
The 15cm thick surface course is well graded sandy gravel with
some silty clay fraction The materials for the road segment from
Kilometer 0+000 to Kilometer 173+000 are derived from calcrete deposits
while the materials for the remaining portion are derived from weathered
3-1
bedrock The surface course has controlled gradation plasticity and
durability to obtain sufficient strength to reduce ravelling to a minimum
particularly during the dry season and to resist the wear of traffic
Surface course materials have been obtained by screening crushing
and blending materials from 9 borrow areas and were compacted to a
minimum of 98 of modified AASUTO maximum dry density The comshy
posite properties for each borrow pit are indicated in the Average
Gradation Ourvesincluded as Figures B-5 through B-13 Directly
after construction of the surface course the measured mean relative
compaction was 100 of the modified AASHTO maximum density
B-2
N A TA K A ZUN GU LA RO0A D 70 033 90 CC
00 00 0 0 0+I 03- 30L K
0 I I
M 3 100 0002L [2
_
MATERIALS UTILIZATION DIAGRAM Fiure -I
NATA - KAZUNGULA ROAD
+--- 121
y T
MATERIALS UTILIZATION DIAGRAM Fgure R-Z
NAT A - KAZ UN GULA ROAD
07 2 230K300 220 220 232 252
I 3 3 2
MATERIALS UTILIZATION DIAGRAM Figure 2-3
itLT-m
CHOBE RIVER BY-PASS ROAD 02__ Q___ 0 60 40 - 0 50 0 i
-F-CEL
-Tl J-II II
MATERIALS UTILIZATION DIAGRAM Figure B-4
3 SIEVE ANALYSIS SMI~ia VIII
IY UN In~ VI STAISRS SIEVE NUMBfh SUE9 - usuLguNuus O-- aoIiUl- I1
11I a to to 0 i oIIIa lf I
II
SN Cu ye B
II N
o
i B _ ___~ N II 1 l s - Curi e At-
I 2 I a 6 4 2 i5 4 3 2 a -
GRAIN I IZE MILTERS
SILT AND CLAY SOILS GRAVEL SAND
I NUMBE1RSAMPLE DEPTH LL KIE IPTIONIELEV P1 ECIT
A Composit 38 19 CrusherAverage Runof 192 samples
B Composit 33 17 Surface Course Blend asAverage of 236 samples placed
MDD 1960 kgm Los Angeles Abrasion = 42 Average Blend Added 15=
REPUBLIC OF BOTSWANA TI PPETTS-ASSETT-NcCAIThY-STRATTOU MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY BOTSWANA-ZAMBIA GRAIN SIZE DISTRIBUTION BY DmArTE Q76HIGHWAY j PIT 2A DOi FIGURE B-5
E ANLYSISSIEVE NALYSIS NI
OPEING - In jS PhIMS-SEVE iNRh3EN son - MILLIMETER
V11 6plusmn SSIEVE
6 i S 0-4 0 10 miUS) 3055 3 001mesa a
9 I I I - -
Crye B
S bull
1TCrii INN20 1 e A- NI deg I FIK 46591 2 a045 4 2 1115 5 2 6
GRIISZ IN MILLIMETERS
COACE iE NtIUM FI SILT AD CLAY SOILSGRAVEL SAND
5r IBSAMPLE DEPTH ELEV LLP1
A Composite 28 10 Crusher Run Average of 229 samples
B Composite 28 11 Surface Course Blend as Placed Average of 58 samples
2050 kgm3 Averaoe Blend Added shy
TIPPETTS-ASETT-NCCARTIY-STATTONREPUBLIC OF BOTSWANA NEW YORK NY
MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS
BRAIN SIZE DISTRIBUTION BY NCZ jAATE9 876BOTSWANA-ZAMBIA
HIGHWAY PIT 14 amp 14A OWN FIGURE B-6
i
S ANALYSIS 01 ANALYSIS
SIEVE - n -IIII- SIZ-MII- - IN i
It a s 1
Ue a -- e B
- 1 -I-[_I - I I I
6l51 10 8 $514 1 O is 05I I 21 8GANSZNILMTR OA RE Filo 9OA-1i 1DI UM F log S ILT AND CLAY SO ILS
GRAVEL nSAND
E--l I UNEASMPLEDEPlTH ELEV LL P1 KWKIPTION
A Composite 36 19 Crusher Run
Average of 116 Samples
B Composite 36 15 Surface Course Blend Average of 138 samples
H GHWA E SA 18 SILT ANDURCLA-SIL
3kgm Los Angeles Abrasion 28
Av agau Pnd AAd = 907 ITI UETT$-ABBTT-NcentcentARTNY-STRATTON
NEW YORK NY
REPUBLIC OF BOTSWANA
MINISTRY OF WORKS amp COM24UNICATIONSIT NINEERS1
I I MGIELI7 I 1 8AIIGIWAE
I
4
SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU
V 1 Oe 001l
- -r--I-I -- I
S E- -IN S
KI zz7llfl$zIIIti z I
low560
20
2
IGRAIN SIZE IN MILLIMETERS
COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS
GRAVEL SAND
SAMP DEPTH ELEV L P1 0NBERIIPTI
A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples
B Composit( 28 13 Surface Course Blend as Placed
Average of 85 samples
Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA
REPUBLIC OF BOTSWANA TI EfTTS-AIETT-NCARTY-STRATTOi ITTqTPI yen O WOVQ A n rn WTraTTn~lz ENGINEERS NEW YOlK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8
-D IUR IB
II SIEVE ANALYIIS 1411 I LYIlMll
[urn $11min - I I ITUSE IVV I - mampINimums1 -l0 n 001
a1 i 4 is s 0 aL w I 2 0665S a a 4 i 0i
-7sl
96---
I RI IE IN M IEER
CfliEI FIN g o au SIT SILFIN M40 5C o432 14593 ry B6
ver 7 samples
NUMBE NERPI
Ay I GRAIN SIZE IN MILLIMETR
5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND
A Q A- Aii dd d~A
IMUBEIRIIIIPIi
3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables
B Composit 26 13 Surface Course BlendU as Placed
Average of 79 samples
AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =
REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9
SIEVE ANALYSIS IMmv na awLYoia
SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I
I- 01 001
e---__
Ir1 -NIP_]
20
OA
$05 9 2
E
I
86543
I
7tN
2 1 65
_OAlEED t
5 2
FN
I
GRAIN SIZE IN MILLIMETERS
1 111I
NU BE GRAVEL
COARSE
I
MEDIUM
I SAND
FSILT AND CLAY SOILS
SAMPLE4 DEP EEY 1 SCBI1PTIORI
A
B
Composite
Composite
38
26
17
13
Crusher Run Basaltic Aggregate
Average of 176 samples
Surface Course Blend -s Placed Average of 58 samples
Average MDD = 2135 kgm Los Angeles Abrasion = 38
Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY
WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971
3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10
SIEVE ANIALYSIS lNVINI1111 ANALYSIS
I EV OPE IN - INI8 TOSIIEENN1-MLII
I
I - - i ii 0
I GRI SIZEto N OILS 1
I ANDLI IS
G VELIZE I
IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL
-APL ESN
DEPTH ELEY LL PI DESCRIPTIONNUSMBE
3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples
B Composite 26 13 Surface Course Blend as Placed Average of 58 samples
Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34
Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY
BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11
___ I
SIEVE ANALYSIS W11 ANKEm SIS
SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS
01 001
sodego
i i
U Ae
6 559 2 a65 3 2 1 6532 S
II GRAIN SIZE INMILLIMETERS
=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL
GRAVEL SN
I SAMPE DEPTH ELEV LL P)S DESCRIPTION
A omposite 28 10 Crusher Run
SAverage of 72 samples
B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples
Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20
REPUBLICUINISTRY 0OF OF
BOTSWANA WORKS amp COMMUNIGTIONS
TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12
I
SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM
-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U
I _
I1li
Ia _ Cu ve
N IC A11
IQI II
1 IG S IIIMETE
I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND
SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION
A Composite 34 15 Crusher Run Average of 74 samples
B Composite 29 12 Surface Course Blend as Placed
Average of 42 samples
MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15
REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA
ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N
NEW sy cKA
YORK NYT E-2 5 1 7 7
HIGHWAY PIT 32A Mwe FIGURE B-13
I I I I I I I I
APPENDIX C
I WATER WELL LOCATIONS
I I I I I I I I I
APPENDIX C WATER WELL LOCATIONS
WELL NO 3
Location Km 171 Lt of centerline 200 meters
Drill - 6 x 392
Ream - 8 x 92
Case - 6 x 84
Test - 24 Hours - 276
Pump 6000 G P H
Total depth - 392
Pumped at 150
24 Hr Drawdown - 3
Water Good
WELL NO 4
Location Km 175 - Lt of centerline 100 meters
Drill - 6 x 380
Ream - 8 x 82
Case - 7 x 82
Test - 276
Pump 1800 G P H
Total depth - 380
Pumped at 200
Drawdown 24 Hr - 100
Water Good
WELL NO 5 (Govt No 2436
Location Km 178 - Lt of centerline 115 meters
Test -276
Pump - 1400 G P H
Total depth - 160
Pumped at 140
24 Hr Drawdown - 60
Water Good C-1
WELL NO 6
Location Km 183 - Lt of centerline 60 meters
Drill - 6 x 436
Ream - 8 x 86
Case - 7 x 86
Test - 276
Pump - 500 G P H
Total depth - 436
Pumped at 250
24 Hr Drawdown - 150
Water Good
WELL NO 7 - (Govt No 2435)
Location Km 189 - Rt of centerline 100 meters
Clean amp Test
Pump - 6000 G P H
Pumped at 140
24 Hr Drawdown - 10
Water Good
WELL NO 14
Location Km 252 - Lt of centerline 100 meters
Drill - 6 x 250
Ream - 8 x 53
Case - 6 x 53
Test - 276
Pump - 6000 G P H
Total depth - 250
Pumped at 150
24 Hr Drawdown - 6
Water Good
C-2
WELL AT KM 256 MAINTENANCE FACILITY NO 3
Location Km 256 - Lt of centerline 200 meters
Depth - 100 feet
Water Rest Level - 42 feet
Depth Pump Set - 70 feet
24 Hr Test - 1800 G P H
WELL NO 15
Location Km 245 - Rt of centerline 40 meters
Drill - 6 x 260
Ream - 8 x 54
Case - 54
Test -276
Pump - 1500 G P H
Total depth - 260
Pumped at 200
24 Hr Drawdown - 140
Water Good
WELL NO 16 Location Km 236 -Rt of centerline 30 meters
Drill - 6 x 250
Ream - 8 x 22
Case - 6 x 22
Test - 276
Pump -6000 G P H
Total depth - 288
Pumped at 150
24 Hr Drawdown - 10
Water Good
C-3
WELL NO 17
Location Km 224 - Rt of centerline 30 meters
Drill - 10 x 89
Case - 8 x 85
Drill- 8x 43
Drill - 6 x 38
Case -6 x 132
Test - 276
Pump -2000 G P H
Total Depth - 170
Pumped at 100
24 Hr Drawdown - 11
Water Good
WELL NO 18
Location Km 217 - Lt of centerline 200 meters
Drill -i0 x 70
Case - 7 x 70
Drill - 7 x 52
Drill - 6 x 88
Case - 6 x 122
Test - 276
Pump 2400 G P H
Total depth - 210
Pumped at 200
24 Hr Drawdown - 140
Water Good
C-4
WELL NO 19
Location Km 213 - Lt of centerline 100 meters
Drill - 10 x 44
Case - 8 x 40
Drill - 8 x 76
Drill 6 x 130
Case - 6 x 120
Test - 276
Pump - 6000 G P H
Total depth - 210
Pumped at 60
24 Hr Drawdown - 10
Water Good
WELL NO 20
Location Km 143 - Rt of centerline 100 meters
Drill - 10 x 240
Case - 7 x 220
Drill -6 x 378
Case - 6 x 240
Case - 5 x 240
Test - 276
Pump -1500 G P H
Total depth - 618
Pumped at 460
24 Hr Drawdown - 105
Water slightly salty to taste but drinkable
C-5
WELL NO 23
Location Km 139 - Lt of centerline 100 meters
Drill - 12 x 290
Place amp Extract Case - 10 x 290
Drill - 8 x 30
Drill - 6 x 40
Case - 8 x 290
Case - 6 x 320
Test - 276
Pump - 1200 G P H
Total depth - 360
Pumped at 330
24 Hr Drawdown - 120
Water salty
WELL NO 24
Location Km 135 - Lt of centerline 500 meters
Drill - 12 x 270
Drill - 10 x 10
Case - 10 x 270
Drill -8 x 30
Case - 8 x 290
Case -6 x 310
Case - 5 x 320
Test -276
Pump -4000 +G P H
Total depth - 320
Pumped at 270
24 Hr Drawdown - 2
Water Salty
C-6
I
5
WELL KM 205 MAINTENANCE FACILITY NO 2
Location Km 105 - Lt of centerline 40 meters
Depth - 302 feet
~ Water Rest Level - 82 feet
Depth Pump Set - 150 feet
48 Hr Test - 3000 + G P H
WELL NO 26
Location Km 82 - Lt of centerline 100 meters
Drill - 12 x 145
5 -8 x145
Drill - 8 x 23
-Case
I Drill - 7 x 10
Case - 7 x 168
I Case - 6 x178
Test - 276
Pump - 1200 G P H
Total depth - 306
I Pumped at 140
24 Hr Drawdown - 35
I Water Good
C
I 0-7
WELL NO 27
Location Km 77 - Lt of centerline 100 meters
Drill - 12 x 174
Install amp Extract Case - 10 x 174
Case - 8 x 174
Drill - 9 x 68
Drill - 8 x 64
Case - 7 x 242
Case - 6 x 306
Test - 276
Pump - 4000 + G P H
Total Depth - 306
Pumpe at 240
24 Hr Drawdown - 0
Water Good
WELL NO 28- (Govt No 2465)
Location Km 63 - Rt of centerline 100 meters
Clean amp Extract Case - 300
Ream - 10 x 98
Ream - 8x 27
Ream - 6 x 12
Case - 8 x 98
Case - 6 x 125
Test - 276
Pump - 1000 + G P H
Total depth - 137
Pumped at 130
24 Hr Drawdown - 33
Water Good
C-8
WELL NO 30
Location Km 47 - Rt of centerline 400 meters
Drill - 12 x 132
Case - 10 x 89
Install amp Extract Case - 12 x 43
Drill - 10 x 117
Case - 7 x 242
Drill - 6 x 183
Install amp Extract Case - 6 x 408
Test - 276
Pump - 1000 G P H
Total depth - 408
Pumped at 160
24 Hr Drawdown - 77
Water Salty
WELL NO 31
- Lt of centerline 200 metersLocation Km 44
Drill - 12 x 110
Case - 10 x 100
Drill - 10 x 142
Case 8 x 142
Drill - 8 x 250
Case 7 x 392
Drill - 6 x 78
Test - 276
Pump - 3000 G P H
Total depth - 502
Pumped at 160
24 Hr Drawdown - 44
Water Salty
C-9
WELL NO 32
Location Km 42 - Lt of centerline 100 meters
Drill - 12 x 108
Case - 10 x 108
Drill - 10 x 212
Drill - 8 x 120
Case - 6 x 340
Case - 8 x 182
Test - 276
Pump - 3000 + G P H
Total depth - 448
Pumped at 160
24 Hr Drawdown - 20
Water Salty
WELL NO 34
Location Km 35 - Lt of centerline 200 meters
Drill - 12 x 230
Install amp Extract Case - 10 x 230
Drill - 8 x 30
Case -6 x 260
Drill - 6 x 160
Case -5 x 324
Case - 8 x 20
Test - 276
Pump -1000 + G P H
Total depth - 420
Pumped at 150
24 Hr Drawdown - 100
Water Salty
C-10
WELL NO 36
Location Km 7 N E along old track from Km 63
Drill - 12 x 180
Case - 10 x 180
Drill - 10 x 231
Case - 8 x 211
Drill- 8x 254
Case - 6 x 245
Test -276
Pump -4000 + G P H
Total depth - 265
Pumped at 180
24 Hr Drawdown - 0
Water Good
C-11
I 3 I 1 I I I I B j APPENDDC D
SYNOPSIS 0 KEY CORRESPONDENCE
3 DURING CONSTRUCTION
I pound I I I 1 I I
On September 1 1973 the Contractor confirmed the
estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts
On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project
On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be
obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated
On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine
On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation
On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension
On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension
On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval
On October 15 1973 the Engineer returned the construction progress schedule for correction
On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim
D-I
On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor
On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project
On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25
On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter
On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents
On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract
On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised
On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading
On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule
On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request
On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period
D-2
On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report
On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material
On August 19 1974 the Contractor submitted an updated construction progress schedule for approval
On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases
On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor
On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor
On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project
On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course
On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country
On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course
On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions
On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule
On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress
D-3
On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract
On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana
On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor
On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion
On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations
On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases
On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season
On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees
On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections
On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project
On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course
On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project
On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract
D-4
October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request
On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor
On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620
On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project
On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y
completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense
On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted
On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project
On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim
On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic
On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor
On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976
D-5
On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time
On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares
On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material
On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500
On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor
On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula
On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana
OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected
On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road
On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road
Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10
On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued
On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced
On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091
On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091
Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued
D-6
I I IUUU U U UU I U
E PROJECT PHOTOGRAPHS
I IIIU U I
I Crushing Plants Surface Course
Pit 2A
Pug Mill Blending Surface Course
Pit 25A
II Surface Course
Pit 25A
UURYPTOERTOSE Pug Mil Blending
Road Reserve Bush Clearing
Km 242
U
Embankment Construction Km 287
IN
Road Construction Water Supply
Km 189
ROADWAY UNDER CONSTRUTION
II
E-2
Stockpiling Material Base Course
Special Embankment Construction Km 232
Watering of Embankment Km 257
ROADWAY UNDER CONSTRUCTION E-3
Culvert Assembly
Twin Culvert with Sand-Cement Pitching
Multiple Culverts with Sand-Cement Pitching
CULVERT INSTALLATIONS E- 4
AT Km 25
AT Km 194
Emergency Landing Strip Kra 2605
FINISHED ROADWAY E- 5
AT Km 286
AT Chobe By-Pass Junction Km 297
I Chobe By-Pass Road Near Ngoma Bridge
E-6FINISHED ROADWAY
APPENDIX B
SOILS AND MATERIALS
(a) General
The road pavement is composed basically of two layers the surface
course and base course overlaying a compacted subgrade or embankment
The sources and volumes of the surface course and base course materials
are indicated in the Materials Utilization Diagrams included as Figures B-i
through B-4
(b) Subgrade
The subgrade soil consists primarily of aeolian fine sand except
for approximately 36 kilometers of the road for which the subgrade is a pan material consisting of clay In the pan areas special 1 Om thick
embankments were constructed with plasticity and fineness control of material
The subgrade and embankment soils were compacted to a minimum of 90
of modified AASHTO compaction The measured mean relative compaction
obtained immediately after compaction of the subgrade was 935 of the modified AASHTO maximum density
(c) Base Course
The majority of the base course materials are derived from aeolian deposits ie fine sand with a trace to some silty clay The
remaining base bourse approximately 15 of the total was obtained from pits having a large component of gravel The 15cm thick base
course is bank run or blended material for which the amounts of fines
and plasticity were controlled The base course materials were obtained from 123 base borrow pits and compacted to a minimum 95 of modified AASHTO density The measured mean relative compaction
directly after construction was 96 of the modified AASHTO maximum
density
(d) Surface Course
The 15cm thick surface course is well graded sandy gravel with
some silty clay fraction The materials for the road segment from
Kilometer 0+000 to Kilometer 173+000 are derived from calcrete deposits
while the materials for the remaining portion are derived from weathered
3-1
bedrock The surface course has controlled gradation plasticity and
durability to obtain sufficient strength to reduce ravelling to a minimum
particularly during the dry season and to resist the wear of traffic
Surface course materials have been obtained by screening crushing
and blending materials from 9 borrow areas and were compacted to a
minimum of 98 of modified AASUTO maximum dry density The comshy
posite properties for each borrow pit are indicated in the Average
Gradation Ourvesincluded as Figures B-5 through B-13 Directly
after construction of the surface course the measured mean relative
compaction was 100 of the modified AASHTO maximum density
B-2
N A TA K A ZUN GU LA RO0A D 70 033 90 CC
00 00 0 0 0+I 03- 30L K
0 I I
M 3 100 0002L [2
_
MATERIALS UTILIZATION DIAGRAM Fiure -I
NATA - KAZUNGULA ROAD
+--- 121
y T
MATERIALS UTILIZATION DIAGRAM Fgure R-Z
NAT A - KAZ UN GULA ROAD
07 2 230K300 220 220 232 252
I 3 3 2
MATERIALS UTILIZATION DIAGRAM Figure 2-3
itLT-m
CHOBE RIVER BY-PASS ROAD 02__ Q___ 0 60 40 - 0 50 0 i
-F-CEL
-Tl J-II II
MATERIALS UTILIZATION DIAGRAM Figure B-4
3 SIEVE ANALYSIS SMI~ia VIII
IY UN In~ VI STAISRS SIEVE NUMBfh SUE9 - usuLguNuus O-- aoIiUl- I1
11I a to to 0 i oIIIa lf I
II
SN Cu ye B
II N
o
i B _ ___~ N II 1 l s - Curi e At-
I 2 I a 6 4 2 i5 4 3 2 a -
GRAIN I IZE MILTERS
SILT AND CLAY SOILS GRAVEL SAND
I NUMBE1RSAMPLE DEPTH LL KIE IPTIONIELEV P1 ECIT
A Composit 38 19 CrusherAverage Runof 192 samples
B Composit 33 17 Surface Course Blend asAverage of 236 samples placed
MDD 1960 kgm Los Angeles Abrasion = 42 Average Blend Added 15=
REPUBLIC OF BOTSWANA TI PPETTS-ASSETT-NcCAIThY-STRATTOU MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY BOTSWANA-ZAMBIA GRAIN SIZE DISTRIBUTION BY DmArTE Q76HIGHWAY j PIT 2A DOi FIGURE B-5
E ANLYSISSIEVE NALYSIS NI
OPEING - In jS PhIMS-SEVE iNRh3EN son - MILLIMETER
V11 6plusmn SSIEVE
6 i S 0-4 0 10 miUS) 3055 3 001mesa a
9 I I I - -
Crye B
S bull
1TCrii INN20 1 e A- NI deg I FIK 46591 2 a045 4 2 1115 5 2 6
GRIISZ IN MILLIMETERS
COACE iE NtIUM FI SILT AD CLAY SOILSGRAVEL SAND
5r IBSAMPLE DEPTH ELEV LLP1
A Composite 28 10 Crusher Run Average of 229 samples
B Composite 28 11 Surface Course Blend as Placed Average of 58 samples
2050 kgm3 Averaoe Blend Added shy
TIPPETTS-ASETT-NCCARTIY-STATTONREPUBLIC OF BOTSWANA NEW YORK NY
MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS
BRAIN SIZE DISTRIBUTION BY NCZ jAATE9 876BOTSWANA-ZAMBIA
HIGHWAY PIT 14 amp 14A OWN FIGURE B-6
i
S ANALYSIS 01 ANALYSIS
SIEVE - n -IIII- SIZ-MII- - IN i
It a s 1
Ue a -- e B
- 1 -I-[_I - I I I
6l51 10 8 $514 1 O is 05I I 21 8GANSZNILMTR OA RE Filo 9OA-1i 1DI UM F log S ILT AND CLAY SO ILS
GRAVEL nSAND
E--l I UNEASMPLEDEPlTH ELEV LL P1 KWKIPTION
A Composite 36 19 Crusher Run
Average of 116 Samples
B Composite 36 15 Surface Course Blend Average of 138 samples
H GHWA E SA 18 SILT ANDURCLA-SIL
3kgm Los Angeles Abrasion 28
Av agau Pnd AAd = 907 ITI UETT$-ABBTT-NcentcentARTNY-STRATTON
NEW YORK NY
REPUBLIC OF BOTSWANA
MINISTRY OF WORKS amp COM24UNICATIONSIT NINEERS1
I I MGIELI7 I 1 8AIIGIWAE
I
4
SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU
V 1 Oe 001l
- -r--I-I -- I
S E- -IN S
KI zz7llfl$zIIIti z I
low560
20
2
IGRAIN SIZE IN MILLIMETERS
COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS
GRAVEL SAND
SAMP DEPTH ELEV L P1 0NBERIIPTI
A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples
B Composit( 28 13 Surface Course Blend as Placed
Average of 85 samples
Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA
REPUBLIC OF BOTSWANA TI EfTTS-AIETT-NCARTY-STRATTOi ITTqTPI yen O WOVQ A n rn WTraTTn~lz ENGINEERS NEW YOlK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8
-D IUR IB
II SIEVE ANALYIIS 1411 I LYIlMll
[urn $11min - I I ITUSE IVV I - mampINimums1 -l0 n 001
a1 i 4 is s 0 aL w I 2 0665S a a 4 i 0i
-7sl
96---
I RI IE IN M IEER
CfliEI FIN g o au SIT SILFIN M40 5C o432 14593 ry B6
ver 7 samples
NUMBE NERPI
Ay I GRAIN SIZE IN MILLIMETR
5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND
A Q A- Aii dd d~A
IMUBEIRIIIIPIi
3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables
B Composit 26 13 Surface Course BlendU as Placed
Average of 79 samples
AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =
REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9
SIEVE ANALYSIS IMmv na awLYoia
SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I
I- 01 001
e---__
Ir1 -NIP_]
20
OA
$05 9 2
E
I
86543
I
7tN
2 1 65
_OAlEED t
5 2
FN
I
GRAIN SIZE IN MILLIMETERS
1 111I
NU BE GRAVEL
COARSE
I
MEDIUM
I SAND
FSILT AND CLAY SOILS
SAMPLE4 DEP EEY 1 SCBI1PTIORI
A
B
Composite
Composite
38
26
17
13
Crusher Run Basaltic Aggregate
Average of 176 samples
Surface Course Blend -s Placed Average of 58 samples
Average MDD = 2135 kgm Los Angeles Abrasion = 38
Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY
WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971
3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10
SIEVE ANIALYSIS lNVINI1111 ANALYSIS
I EV OPE IN - INI8 TOSIIEENN1-MLII
I
I - - i ii 0
I GRI SIZEto N OILS 1
I ANDLI IS
G VELIZE I
IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL
-APL ESN
DEPTH ELEY LL PI DESCRIPTIONNUSMBE
3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples
B Composite 26 13 Surface Course Blend as Placed Average of 58 samples
Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34
Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY
BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11
___ I
SIEVE ANALYSIS W11 ANKEm SIS
SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS
01 001
sodego
i i
U Ae
6 559 2 a65 3 2 1 6532 S
II GRAIN SIZE INMILLIMETERS
=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL
GRAVEL SN
I SAMPE DEPTH ELEV LL P)S DESCRIPTION
A omposite 28 10 Crusher Run
SAverage of 72 samples
B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples
Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20
REPUBLICUINISTRY 0OF OF
BOTSWANA WORKS amp COMMUNIGTIONS
TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12
I
SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM
-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U
I _
I1li
Ia _ Cu ve
N IC A11
IQI II
1 IG S IIIMETE
I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND
SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION
A Composite 34 15 Crusher Run Average of 74 samples
B Composite 29 12 Surface Course Blend as Placed
Average of 42 samples
MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15
REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA
ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N
NEW sy cKA
YORK NYT E-2 5 1 7 7
HIGHWAY PIT 32A Mwe FIGURE B-13
I I I I I I I I
APPENDIX C
I WATER WELL LOCATIONS
I I I I I I I I I
APPENDIX C WATER WELL LOCATIONS
WELL NO 3
Location Km 171 Lt of centerline 200 meters
Drill - 6 x 392
Ream - 8 x 92
Case - 6 x 84
Test - 24 Hours - 276
Pump 6000 G P H
Total depth - 392
Pumped at 150
24 Hr Drawdown - 3
Water Good
WELL NO 4
Location Km 175 - Lt of centerline 100 meters
Drill - 6 x 380
Ream - 8 x 82
Case - 7 x 82
Test - 276
Pump 1800 G P H
Total depth - 380
Pumped at 200
Drawdown 24 Hr - 100
Water Good
WELL NO 5 (Govt No 2436
Location Km 178 - Lt of centerline 115 meters
Test -276
Pump - 1400 G P H
Total depth - 160
Pumped at 140
24 Hr Drawdown - 60
Water Good C-1
WELL NO 6
Location Km 183 - Lt of centerline 60 meters
Drill - 6 x 436
Ream - 8 x 86
Case - 7 x 86
Test - 276
Pump - 500 G P H
Total depth - 436
Pumped at 250
24 Hr Drawdown - 150
Water Good
WELL NO 7 - (Govt No 2435)
Location Km 189 - Rt of centerline 100 meters
Clean amp Test
Pump - 6000 G P H
Pumped at 140
24 Hr Drawdown - 10
Water Good
WELL NO 14
Location Km 252 - Lt of centerline 100 meters
Drill - 6 x 250
Ream - 8 x 53
Case - 6 x 53
Test - 276
Pump - 6000 G P H
Total depth - 250
Pumped at 150
24 Hr Drawdown - 6
Water Good
C-2
WELL AT KM 256 MAINTENANCE FACILITY NO 3
Location Km 256 - Lt of centerline 200 meters
Depth - 100 feet
Water Rest Level - 42 feet
Depth Pump Set - 70 feet
24 Hr Test - 1800 G P H
WELL NO 15
Location Km 245 - Rt of centerline 40 meters
Drill - 6 x 260
Ream - 8 x 54
Case - 54
Test -276
Pump - 1500 G P H
Total depth - 260
Pumped at 200
24 Hr Drawdown - 140
Water Good
WELL NO 16 Location Km 236 -Rt of centerline 30 meters
Drill - 6 x 250
Ream - 8 x 22
Case - 6 x 22
Test - 276
Pump -6000 G P H
Total depth - 288
Pumped at 150
24 Hr Drawdown - 10
Water Good
C-3
WELL NO 17
Location Km 224 - Rt of centerline 30 meters
Drill - 10 x 89
Case - 8 x 85
Drill- 8x 43
Drill - 6 x 38
Case -6 x 132
Test - 276
Pump -2000 G P H
Total Depth - 170
Pumped at 100
24 Hr Drawdown - 11
Water Good
WELL NO 18
Location Km 217 - Lt of centerline 200 meters
Drill -i0 x 70
Case - 7 x 70
Drill - 7 x 52
Drill - 6 x 88
Case - 6 x 122
Test - 276
Pump 2400 G P H
Total depth - 210
Pumped at 200
24 Hr Drawdown - 140
Water Good
C-4
WELL NO 19
Location Km 213 - Lt of centerline 100 meters
Drill - 10 x 44
Case - 8 x 40
Drill - 8 x 76
Drill 6 x 130
Case - 6 x 120
Test - 276
Pump - 6000 G P H
Total depth - 210
Pumped at 60
24 Hr Drawdown - 10
Water Good
WELL NO 20
Location Km 143 - Rt of centerline 100 meters
Drill - 10 x 240
Case - 7 x 220
Drill -6 x 378
Case - 6 x 240
Case - 5 x 240
Test - 276
Pump -1500 G P H
Total depth - 618
Pumped at 460
24 Hr Drawdown - 105
Water slightly salty to taste but drinkable
C-5
WELL NO 23
Location Km 139 - Lt of centerline 100 meters
Drill - 12 x 290
Place amp Extract Case - 10 x 290
Drill - 8 x 30
Drill - 6 x 40
Case - 8 x 290
Case - 6 x 320
Test - 276
Pump - 1200 G P H
Total depth - 360
Pumped at 330
24 Hr Drawdown - 120
Water salty
WELL NO 24
Location Km 135 - Lt of centerline 500 meters
Drill - 12 x 270
Drill - 10 x 10
Case - 10 x 270
Drill -8 x 30
Case - 8 x 290
Case -6 x 310
Case - 5 x 320
Test -276
Pump -4000 +G P H
Total depth - 320
Pumped at 270
24 Hr Drawdown - 2
Water Salty
C-6
I
5
WELL KM 205 MAINTENANCE FACILITY NO 2
Location Km 105 - Lt of centerline 40 meters
Depth - 302 feet
~ Water Rest Level - 82 feet
Depth Pump Set - 150 feet
48 Hr Test - 3000 + G P H
WELL NO 26
Location Km 82 - Lt of centerline 100 meters
Drill - 12 x 145
5 -8 x145
Drill - 8 x 23
-Case
I Drill - 7 x 10
Case - 7 x 168
I Case - 6 x178
Test - 276
Pump - 1200 G P H
Total depth - 306
I Pumped at 140
24 Hr Drawdown - 35
I Water Good
C
I 0-7
WELL NO 27
Location Km 77 - Lt of centerline 100 meters
Drill - 12 x 174
Install amp Extract Case - 10 x 174
Case - 8 x 174
Drill - 9 x 68
Drill - 8 x 64
Case - 7 x 242
Case - 6 x 306
Test - 276
Pump - 4000 + G P H
Total Depth - 306
Pumpe at 240
24 Hr Drawdown - 0
Water Good
WELL NO 28- (Govt No 2465)
Location Km 63 - Rt of centerline 100 meters
Clean amp Extract Case - 300
Ream - 10 x 98
Ream - 8x 27
Ream - 6 x 12
Case - 8 x 98
Case - 6 x 125
Test - 276
Pump - 1000 + G P H
Total depth - 137
Pumped at 130
24 Hr Drawdown - 33
Water Good
C-8
WELL NO 30
Location Km 47 - Rt of centerline 400 meters
Drill - 12 x 132
Case - 10 x 89
Install amp Extract Case - 12 x 43
Drill - 10 x 117
Case - 7 x 242
Drill - 6 x 183
Install amp Extract Case - 6 x 408
Test - 276
Pump - 1000 G P H
Total depth - 408
Pumped at 160
24 Hr Drawdown - 77
Water Salty
WELL NO 31
- Lt of centerline 200 metersLocation Km 44
Drill - 12 x 110
Case - 10 x 100
Drill - 10 x 142
Case 8 x 142
Drill - 8 x 250
Case 7 x 392
Drill - 6 x 78
Test - 276
Pump - 3000 G P H
Total depth - 502
Pumped at 160
24 Hr Drawdown - 44
Water Salty
C-9
WELL NO 32
Location Km 42 - Lt of centerline 100 meters
Drill - 12 x 108
Case - 10 x 108
Drill - 10 x 212
Drill - 8 x 120
Case - 6 x 340
Case - 8 x 182
Test - 276
Pump - 3000 + G P H
Total depth - 448
Pumped at 160
24 Hr Drawdown - 20
Water Salty
WELL NO 34
Location Km 35 - Lt of centerline 200 meters
Drill - 12 x 230
Install amp Extract Case - 10 x 230
Drill - 8 x 30
Case -6 x 260
Drill - 6 x 160
Case -5 x 324
Case - 8 x 20
Test - 276
Pump -1000 + G P H
Total depth - 420
Pumped at 150
24 Hr Drawdown - 100
Water Salty
C-10
WELL NO 36
Location Km 7 N E along old track from Km 63
Drill - 12 x 180
Case - 10 x 180
Drill - 10 x 231
Case - 8 x 211
Drill- 8x 254
Case - 6 x 245
Test -276
Pump -4000 + G P H
Total depth - 265
Pumped at 180
24 Hr Drawdown - 0
Water Good
C-11
I 3 I 1 I I I I B j APPENDDC D
SYNOPSIS 0 KEY CORRESPONDENCE
3 DURING CONSTRUCTION
I pound I I I 1 I I
On September 1 1973 the Contractor confirmed the
estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts
On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project
On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be
obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated
On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine
On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation
On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension
On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension
On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval
On October 15 1973 the Engineer returned the construction progress schedule for correction
On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim
D-I
On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor
On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project
On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25
On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter
On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents
On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract
On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised
On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading
On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule
On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request
On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period
D-2
On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report
On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material
On August 19 1974 the Contractor submitted an updated construction progress schedule for approval
On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases
On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor
On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor
On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project
On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course
On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country
On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course
On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions
On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule
On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress
D-3
On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract
On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana
On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor
On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion
On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations
On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases
On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season
On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees
On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections
On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project
On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course
On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project
On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract
D-4
October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request
On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor
On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620
On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project
On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y
completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense
On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted
On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project
On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim
On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic
On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor
On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976
D-5
On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time
On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares
On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material
On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500
On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor
On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula
On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana
OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected
On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road
On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road
Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10
On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued
On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced
On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091
On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091
Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued
D-6
I I IUUU U U UU I U
E PROJECT PHOTOGRAPHS
I IIIU U I
I Crushing Plants Surface Course
Pit 2A
Pug Mill Blending Surface Course
Pit 25A
II Surface Course
Pit 25A
UURYPTOERTOSE Pug Mil Blending
Road Reserve Bush Clearing
Km 242
U
Embankment Construction Km 287
IN
Road Construction Water Supply
Km 189
ROADWAY UNDER CONSTRUTION
II
E-2
Stockpiling Material Base Course
Special Embankment Construction Km 232
Watering of Embankment Km 257
ROADWAY UNDER CONSTRUCTION E-3
Culvert Assembly
Twin Culvert with Sand-Cement Pitching
Multiple Culverts with Sand-Cement Pitching
CULVERT INSTALLATIONS E- 4
AT Km 25
AT Km 194
Emergency Landing Strip Kra 2605
FINISHED ROADWAY E- 5
AT Km 286
AT Chobe By-Pass Junction Km 297
I Chobe By-Pass Road Near Ngoma Bridge
E-6FINISHED ROADWAY
bedrock The surface course has controlled gradation plasticity and
durability to obtain sufficient strength to reduce ravelling to a minimum
particularly during the dry season and to resist the wear of traffic
Surface course materials have been obtained by screening crushing
and blending materials from 9 borrow areas and were compacted to a
minimum of 98 of modified AASUTO maximum dry density The comshy
posite properties for each borrow pit are indicated in the Average
Gradation Ourvesincluded as Figures B-5 through B-13 Directly
after construction of the surface course the measured mean relative
compaction was 100 of the modified AASHTO maximum density
B-2
N A TA K A ZUN GU LA RO0A D 70 033 90 CC
00 00 0 0 0+I 03- 30L K
0 I I
M 3 100 0002L [2
_
MATERIALS UTILIZATION DIAGRAM Fiure -I
NATA - KAZUNGULA ROAD
+--- 121
y T
MATERIALS UTILIZATION DIAGRAM Fgure R-Z
NAT A - KAZ UN GULA ROAD
07 2 230K300 220 220 232 252
I 3 3 2
MATERIALS UTILIZATION DIAGRAM Figure 2-3
itLT-m
CHOBE RIVER BY-PASS ROAD 02__ Q___ 0 60 40 - 0 50 0 i
-F-CEL
-Tl J-II II
MATERIALS UTILIZATION DIAGRAM Figure B-4
3 SIEVE ANALYSIS SMI~ia VIII
IY UN In~ VI STAISRS SIEVE NUMBfh SUE9 - usuLguNuus O-- aoIiUl- I1
11I a to to 0 i oIIIa lf I
II
SN Cu ye B
II N
o
i B _ ___~ N II 1 l s - Curi e At-
I 2 I a 6 4 2 i5 4 3 2 a -
GRAIN I IZE MILTERS
SILT AND CLAY SOILS GRAVEL SAND
I NUMBE1RSAMPLE DEPTH LL KIE IPTIONIELEV P1 ECIT
A Composit 38 19 CrusherAverage Runof 192 samples
B Composit 33 17 Surface Course Blend asAverage of 236 samples placed
MDD 1960 kgm Los Angeles Abrasion = 42 Average Blend Added 15=
REPUBLIC OF BOTSWANA TI PPETTS-ASSETT-NcCAIThY-STRATTOU MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY BOTSWANA-ZAMBIA GRAIN SIZE DISTRIBUTION BY DmArTE Q76HIGHWAY j PIT 2A DOi FIGURE B-5
E ANLYSISSIEVE NALYSIS NI
OPEING - In jS PhIMS-SEVE iNRh3EN son - MILLIMETER
V11 6plusmn SSIEVE
6 i S 0-4 0 10 miUS) 3055 3 001mesa a
9 I I I - -
Crye B
S bull
1TCrii INN20 1 e A- NI deg I FIK 46591 2 a045 4 2 1115 5 2 6
GRIISZ IN MILLIMETERS
COACE iE NtIUM FI SILT AD CLAY SOILSGRAVEL SAND
5r IBSAMPLE DEPTH ELEV LLP1
A Composite 28 10 Crusher Run Average of 229 samples
B Composite 28 11 Surface Course Blend as Placed Average of 58 samples
2050 kgm3 Averaoe Blend Added shy
TIPPETTS-ASETT-NCCARTIY-STATTONREPUBLIC OF BOTSWANA NEW YORK NY
MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS
BRAIN SIZE DISTRIBUTION BY NCZ jAATE9 876BOTSWANA-ZAMBIA
HIGHWAY PIT 14 amp 14A OWN FIGURE B-6
i
S ANALYSIS 01 ANALYSIS
SIEVE - n -IIII- SIZ-MII- - IN i
It a s 1
Ue a -- e B
- 1 -I-[_I - I I I
6l51 10 8 $514 1 O is 05I I 21 8GANSZNILMTR OA RE Filo 9OA-1i 1DI UM F log S ILT AND CLAY SO ILS
GRAVEL nSAND
E--l I UNEASMPLEDEPlTH ELEV LL P1 KWKIPTION
A Composite 36 19 Crusher Run
Average of 116 Samples
B Composite 36 15 Surface Course Blend Average of 138 samples
H GHWA E SA 18 SILT ANDURCLA-SIL
3kgm Los Angeles Abrasion 28
Av agau Pnd AAd = 907 ITI UETT$-ABBTT-NcentcentARTNY-STRATTON
NEW YORK NY
REPUBLIC OF BOTSWANA
MINISTRY OF WORKS amp COM24UNICATIONSIT NINEERS1
I I MGIELI7 I 1 8AIIGIWAE
I
4
SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU
V 1 Oe 001l
- -r--I-I -- I
S E- -IN S
KI zz7llfl$zIIIti z I
low560
20
2
IGRAIN SIZE IN MILLIMETERS
COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS
GRAVEL SAND
SAMP DEPTH ELEV L P1 0NBERIIPTI
A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples
B Composit( 28 13 Surface Course Blend as Placed
Average of 85 samples
Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA
REPUBLIC OF BOTSWANA TI EfTTS-AIETT-NCARTY-STRATTOi ITTqTPI yen O WOVQ A n rn WTraTTn~lz ENGINEERS NEW YOlK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8
-D IUR IB
II SIEVE ANALYIIS 1411 I LYIlMll
[urn $11min - I I ITUSE IVV I - mampINimums1 -l0 n 001
a1 i 4 is s 0 aL w I 2 0665S a a 4 i 0i
-7sl
96---
I RI IE IN M IEER
CfliEI FIN g o au SIT SILFIN M40 5C o432 14593 ry B6
ver 7 samples
NUMBE NERPI
Ay I GRAIN SIZE IN MILLIMETR
5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND
A Q A- Aii dd d~A
IMUBEIRIIIIPIi
3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables
B Composit 26 13 Surface Course BlendU as Placed
Average of 79 samples
AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =
REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9
SIEVE ANALYSIS IMmv na awLYoia
SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I
I- 01 001
e---__
Ir1 -NIP_]
20
OA
$05 9 2
E
I
86543
I
7tN
2 1 65
_OAlEED t
5 2
FN
I
GRAIN SIZE IN MILLIMETERS
1 111I
NU BE GRAVEL
COARSE
I
MEDIUM
I SAND
FSILT AND CLAY SOILS
SAMPLE4 DEP EEY 1 SCBI1PTIORI
A
B
Composite
Composite
38
26
17
13
Crusher Run Basaltic Aggregate
Average of 176 samples
Surface Course Blend -s Placed Average of 58 samples
Average MDD = 2135 kgm Los Angeles Abrasion = 38
Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY
WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971
3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10
SIEVE ANIALYSIS lNVINI1111 ANALYSIS
I EV OPE IN - INI8 TOSIIEENN1-MLII
I
I - - i ii 0
I GRI SIZEto N OILS 1
I ANDLI IS
G VELIZE I
IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL
-APL ESN
DEPTH ELEY LL PI DESCRIPTIONNUSMBE
3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples
B Composite 26 13 Surface Course Blend as Placed Average of 58 samples
Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34
Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY
BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11
___ I
SIEVE ANALYSIS W11 ANKEm SIS
SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS
01 001
sodego
i i
U Ae
6 559 2 a65 3 2 1 6532 S
II GRAIN SIZE INMILLIMETERS
=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL
GRAVEL SN
I SAMPE DEPTH ELEV LL P)S DESCRIPTION
A omposite 28 10 Crusher Run
SAverage of 72 samples
B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples
Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20
REPUBLICUINISTRY 0OF OF
BOTSWANA WORKS amp COMMUNIGTIONS
TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12
I
SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM
-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U
I _
I1li
Ia _ Cu ve
N IC A11
IQI II
1 IG S IIIMETE
I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND
SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION
A Composite 34 15 Crusher Run Average of 74 samples
B Composite 29 12 Surface Course Blend as Placed
Average of 42 samples
MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15
REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA
ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N
NEW sy cKA
YORK NYT E-2 5 1 7 7
HIGHWAY PIT 32A Mwe FIGURE B-13
I I I I I I I I
APPENDIX C
I WATER WELL LOCATIONS
I I I I I I I I I
APPENDIX C WATER WELL LOCATIONS
WELL NO 3
Location Km 171 Lt of centerline 200 meters
Drill - 6 x 392
Ream - 8 x 92
Case - 6 x 84
Test - 24 Hours - 276
Pump 6000 G P H
Total depth - 392
Pumped at 150
24 Hr Drawdown - 3
Water Good
WELL NO 4
Location Km 175 - Lt of centerline 100 meters
Drill - 6 x 380
Ream - 8 x 82
Case - 7 x 82
Test - 276
Pump 1800 G P H
Total depth - 380
Pumped at 200
Drawdown 24 Hr - 100
Water Good
WELL NO 5 (Govt No 2436
Location Km 178 - Lt of centerline 115 meters
Test -276
Pump - 1400 G P H
Total depth - 160
Pumped at 140
24 Hr Drawdown - 60
Water Good C-1
WELL NO 6
Location Km 183 - Lt of centerline 60 meters
Drill - 6 x 436
Ream - 8 x 86
Case - 7 x 86
Test - 276
Pump - 500 G P H
Total depth - 436
Pumped at 250
24 Hr Drawdown - 150
Water Good
WELL NO 7 - (Govt No 2435)
Location Km 189 - Rt of centerline 100 meters
Clean amp Test
Pump - 6000 G P H
Pumped at 140
24 Hr Drawdown - 10
Water Good
WELL NO 14
Location Km 252 - Lt of centerline 100 meters
Drill - 6 x 250
Ream - 8 x 53
Case - 6 x 53
Test - 276
Pump - 6000 G P H
Total depth - 250
Pumped at 150
24 Hr Drawdown - 6
Water Good
C-2
WELL AT KM 256 MAINTENANCE FACILITY NO 3
Location Km 256 - Lt of centerline 200 meters
Depth - 100 feet
Water Rest Level - 42 feet
Depth Pump Set - 70 feet
24 Hr Test - 1800 G P H
WELL NO 15
Location Km 245 - Rt of centerline 40 meters
Drill - 6 x 260
Ream - 8 x 54
Case - 54
Test -276
Pump - 1500 G P H
Total depth - 260
Pumped at 200
24 Hr Drawdown - 140
Water Good
WELL NO 16 Location Km 236 -Rt of centerline 30 meters
Drill - 6 x 250
Ream - 8 x 22
Case - 6 x 22
Test - 276
Pump -6000 G P H
Total depth - 288
Pumped at 150
24 Hr Drawdown - 10
Water Good
C-3
WELL NO 17
Location Km 224 - Rt of centerline 30 meters
Drill - 10 x 89
Case - 8 x 85
Drill- 8x 43
Drill - 6 x 38
Case -6 x 132
Test - 276
Pump -2000 G P H
Total Depth - 170
Pumped at 100
24 Hr Drawdown - 11
Water Good
WELL NO 18
Location Km 217 - Lt of centerline 200 meters
Drill -i0 x 70
Case - 7 x 70
Drill - 7 x 52
Drill - 6 x 88
Case - 6 x 122
Test - 276
Pump 2400 G P H
Total depth - 210
Pumped at 200
24 Hr Drawdown - 140
Water Good
C-4
WELL NO 19
Location Km 213 - Lt of centerline 100 meters
Drill - 10 x 44
Case - 8 x 40
Drill - 8 x 76
Drill 6 x 130
Case - 6 x 120
Test - 276
Pump - 6000 G P H
Total depth - 210
Pumped at 60
24 Hr Drawdown - 10
Water Good
WELL NO 20
Location Km 143 - Rt of centerline 100 meters
Drill - 10 x 240
Case - 7 x 220
Drill -6 x 378
Case - 6 x 240
Case - 5 x 240
Test - 276
Pump -1500 G P H
Total depth - 618
Pumped at 460
24 Hr Drawdown - 105
Water slightly salty to taste but drinkable
C-5
WELL NO 23
Location Km 139 - Lt of centerline 100 meters
Drill - 12 x 290
Place amp Extract Case - 10 x 290
Drill - 8 x 30
Drill - 6 x 40
Case - 8 x 290
Case - 6 x 320
Test - 276
Pump - 1200 G P H
Total depth - 360
Pumped at 330
24 Hr Drawdown - 120
Water salty
WELL NO 24
Location Km 135 - Lt of centerline 500 meters
Drill - 12 x 270
Drill - 10 x 10
Case - 10 x 270
Drill -8 x 30
Case - 8 x 290
Case -6 x 310
Case - 5 x 320
Test -276
Pump -4000 +G P H
Total depth - 320
Pumped at 270
24 Hr Drawdown - 2
Water Salty
C-6
I
5
WELL KM 205 MAINTENANCE FACILITY NO 2
Location Km 105 - Lt of centerline 40 meters
Depth - 302 feet
~ Water Rest Level - 82 feet
Depth Pump Set - 150 feet
48 Hr Test - 3000 + G P H
WELL NO 26
Location Km 82 - Lt of centerline 100 meters
Drill - 12 x 145
5 -8 x145
Drill - 8 x 23
-Case
I Drill - 7 x 10
Case - 7 x 168
I Case - 6 x178
Test - 276
Pump - 1200 G P H
Total depth - 306
I Pumped at 140
24 Hr Drawdown - 35
I Water Good
C
I 0-7
WELL NO 27
Location Km 77 - Lt of centerline 100 meters
Drill - 12 x 174
Install amp Extract Case - 10 x 174
Case - 8 x 174
Drill - 9 x 68
Drill - 8 x 64
Case - 7 x 242
Case - 6 x 306
Test - 276
Pump - 4000 + G P H
Total Depth - 306
Pumpe at 240
24 Hr Drawdown - 0
Water Good
WELL NO 28- (Govt No 2465)
Location Km 63 - Rt of centerline 100 meters
Clean amp Extract Case - 300
Ream - 10 x 98
Ream - 8x 27
Ream - 6 x 12
Case - 8 x 98
Case - 6 x 125
Test - 276
Pump - 1000 + G P H
Total depth - 137
Pumped at 130
24 Hr Drawdown - 33
Water Good
C-8
WELL NO 30
Location Km 47 - Rt of centerline 400 meters
Drill - 12 x 132
Case - 10 x 89
Install amp Extract Case - 12 x 43
Drill - 10 x 117
Case - 7 x 242
Drill - 6 x 183
Install amp Extract Case - 6 x 408
Test - 276
Pump - 1000 G P H
Total depth - 408
Pumped at 160
24 Hr Drawdown - 77
Water Salty
WELL NO 31
- Lt of centerline 200 metersLocation Km 44
Drill - 12 x 110
Case - 10 x 100
Drill - 10 x 142
Case 8 x 142
Drill - 8 x 250
Case 7 x 392
Drill - 6 x 78
Test - 276
Pump - 3000 G P H
Total depth - 502
Pumped at 160
24 Hr Drawdown - 44
Water Salty
C-9
WELL NO 32
Location Km 42 - Lt of centerline 100 meters
Drill - 12 x 108
Case - 10 x 108
Drill - 10 x 212
Drill - 8 x 120
Case - 6 x 340
Case - 8 x 182
Test - 276
Pump - 3000 + G P H
Total depth - 448
Pumped at 160
24 Hr Drawdown - 20
Water Salty
WELL NO 34
Location Km 35 - Lt of centerline 200 meters
Drill - 12 x 230
Install amp Extract Case - 10 x 230
Drill - 8 x 30
Case -6 x 260
Drill - 6 x 160
Case -5 x 324
Case - 8 x 20
Test - 276
Pump -1000 + G P H
Total depth - 420
Pumped at 150
24 Hr Drawdown - 100
Water Salty
C-10
WELL NO 36
Location Km 7 N E along old track from Km 63
Drill - 12 x 180
Case - 10 x 180
Drill - 10 x 231
Case - 8 x 211
Drill- 8x 254
Case - 6 x 245
Test -276
Pump -4000 + G P H
Total depth - 265
Pumped at 180
24 Hr Drawdown - 0
Water Good
C-11
I 3 I 1 I I I I B j APPENDDC D
SYNOPSIS 0 KEY CORRESPONDENCE
3 DURING CONSTRUCTION
I pound I I I 1 I I
On September 1 1973 the Contractor confirmed the
estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts
On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project
On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be
obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated
On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine
On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation
On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension
On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension
On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval
On October 15 1973 the Engineer returned the construction progress schedule for correction
On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim
D-I
On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor
On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project
On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25
On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter
On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents
On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract
On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised
On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading
On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule
On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request
On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period
D-2
On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report
On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material
On August 19 1974 the Contractor submitted an updated construction progress schedule for approval
On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases
On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor
On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor
On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project
On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course
On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country
On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course
On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions
On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule
On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress
D-3
On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract
On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana
On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor
On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion
On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations
On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases
On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season
On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees
On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections
On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project
On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course
On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project
On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract
D-4
October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request
On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor
On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620
On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project
On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y
completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense
On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted
On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project
On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim
On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic
On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor
On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976
D-5
On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time
On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares
On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material
On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500
On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor
On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula
On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana
OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected
On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road
On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road
Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10
On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued
On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced
On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091
On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091
Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued
D-6
I I IUUU U U UU I U
E PROJECT PHOTOGRAPHS
I IIIU U I
I Crushing Plants Surface Course
Pit 2A
Pug Mill Blending Surface Course
Pit 25A
II Surface Course
Pit 25A
UURYPTOERTOSE Pug Mil Blending
Road Reserve Bush Clearing
Km 242
U
Embankment Construction Km 287
IN
Road Construction Water Supply
Km 189
ROADWAY UNDER CONSTRUTION
II
E-2
Stockpiling Material Base Course
Special Embankment Construction Km 232
Watering of Embankment Km 257
ROADWAY UNDER CONSTRUCTION E-3
Culvert Assembly
Twin Culvert with Sand-Cement Pitching
Multiple Culverts with Sand-Cement Pitching
CULVERT INSTALLATIONS E- 4
AT Km 25
AT Km 194
Emergency Landing Strip Kra 2605
FINISHED ROADWAY E- 5
AT Km 286
AT Chobe By-Pass Junction Km 297
I Chobe By-Pass Road Near Ngoma Bridge
E-6FINISHED ROADWAY
N A TA K A ZUN GU LA RO0A D 70 033 90 CC
00 00 0 0 0+I 03- 30L K
0 I I
M 3 100 0002L [2
_
MATERIALS UTILIZATION DIAGRAM Fiure -I
NATA - KAZUNGULA ROAD
+--- 121
y T
MATERIALS UTILIZATION DIAGRAM Fgure R-Z
NAT A - KAZ UN GULA ROAD
07 2 230K300 220 220 232 252
I 3 3 2
MATERIALS UTILIZATION DIAGRAM Figure 2-3
itLT-m
CHOBE RIVER BY-PASS ROAD 02__ Q___ 0 60 40 - 0 50 0 i
-F-CEL
-Tl J-II II
MATERIALS UTILIZATION DIAGRAM Figure B-4
3 SIEVE ANALYSIS SMI~ia VIII
IY UN In~ VI STAISRS SIEVE NUMBfh SUE9 - usuLguNuus O-- aoIiUl- I1
11I a to to 0 i oIIIa lf I
II
SN Cu ye B
II N
o
i B _ ___~ N II 1 l s - Curi e At-
I 2 I a 6 4 2 i5 4 3 2 a -
GRAIN I IZE MILTERS
SILT AND CLAY SOILS GRAVEL SAND
I NUMBE1RSAMPLE DEPTH LL KIE IPTIONIELEV P1 ECIT
A Composit 38 19 CrusherAverage Runof 192 samples
B Composit 33 17 Surface Course Blend asAverage of 236 samples placed
MDD 1960 kgm Los Angeles Abrasion = 42 Average Blend Added 15=
REPUBLIC OF BOTSWANA TI PPETTS-ASSETT-NcCAIThY-STRATTOU MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY BOTSWANA-ZAMBIA GRAIN SIZE DISTRIBUTION BY DmArTE Q76HIGHWAY j PIT 2A DOi FIGURE B-5
E ANLYSISSIEVE NALYSIS NI
OPEING - In jS PhIMS-SEVE iNRh3EN son - MILLIMETER
V11 6plusmn SSIEVE
6 i S 0-4 0 10 miUS) 3055 3 001mesa a
9 I I I - -
Crye B
S bull
1TCrii INN20 1 e A- NI deg I FIK 46591 2 a045 4 2 1115 5 2 6
GRIISZ IN MILLIMETERS
COACE iE NtIUM FI SILT AD CLAY SOILSGRAVEL SAND
5r IBSAMPLE DEPTH ELEV LLP1
A Composite 28 10 Crusher Run Average of 229 samples
B Composite 28 11 Surface Course Blend as Placed Average of 58 samples
2050 kgm3 Averaoe Blend Added shy
TIPPETTS-ASETT-NCCARTIY-STATTONREPUBLIC OF BOTSWANA NEW YORK NY
MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS
BRAIN SIZE DISTRIBUTION BY NCZ jAATE9 876BOTSWANA-ZAMBIA
HIGHWAY PIT 14 amp 14A OWN FIGURE B-6
i
S ANALYSIS 01 ANALYSIS
SIEVE - n -IIII- SIZ-MII- - IN i
It a s 1
Ue a -- e B
- 1 -I-[_I - I I I
6l51 10 8 $514 1 O is 05I I 21 8GANSZNILMTR OA RE Filo 9OA-1i 1DI UM F log S ILT AND CLAY SO ILS
GRAVEL nSAND
E--l I UNEASMPLEDEPlTH ELEV LL P1 KWKIPTION
A Composite 36 19 Crusher Run
Average of 116 Samples
B Composite 36 15 Surface Course Blend Average of 138 samples
H GHWA E SA 18 SILT ANDURCLA-SIL
3kgm Los Angeles Abrasion 28
Av agau Pnd AAd = 907 ITI UETT$-ABBTT-NcentcentARTNY-STRATTON
NEW YORK NY
REPUBLIC OF BOTSWANA
MINISTRY OF WORKS amp COM24UNICATIONSIT NINEERS1
I I MGIELI7 I 1 8AIIGIWAE
I
4
SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU
V 1 Oe 001l
- -r--I-I -- I
S E- -IN S
KI zz7llfl$zIIIti z I
low560
20
2
IGRAIN SIZE IN MILLIMETERS
COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS
GRAVEL SAND
SAMP DEPTH ELEV L P1 0NBERIIPTI
A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples
B Composit( 28 13 Surface Course Blend as Placed
Average of 85 samples
Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA
REPUBLIC OF BOTSWANA TI EfTTS-AIETT-NCARTY-STRATTOi ITTqTPI yen O WOVQ A n rn WTraTTn~lz ENGINEERS NEW YOlK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8
-D IUR IB
II SIEVE ANALYIIS 1411 I LYIlMll
[urn $11min - I I ITUSE IVV I - mampINimums1 -l0 n 001
a1 i 4 is s 0 aL w I 2 0665S a a 4 i 0i
-7sl
96---
I RI IE IN M IEER
CfliEI FIN g o au SIT SILFIN M40 5C o432 14593 ry B6
ver 7 samples
NUMBE NERPI
Ay I GRAIN SIZE IN MILLIMETR
5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND
A Q A- Aii dd d~A
IMUBEIRIIIIPIi
3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables
B Composit 26 13 Surface Course BlendU as Placed
Average of 79 samples
AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =
REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9
SIEVE ANALYSIS IMmv na awLYoia
SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I
I- 01 001
e---__
Ir1 -NIP_]
20
OA
$05 9 2
E
I
86543
I
7tN
2 1 65
_OAlEED t
5 2
FN
I
GRAIN SIZE IN MILLIMETERS
1 111I
NU BE GRAVEL
COARSE
I
MEDIUM
I SAND
FSILT AND CLAY SOILS
SAMPLE4 DEP EEY 1 SCBI1PTIORI
A
B
Composite
Composite
38
26
17
13
Crusher Run Basaltic Aggregate
Average of 176 samples
Surface Course Blend -s Placed Average of 58 samples
Average MDD = 2135 kgm Los Angeles Abrasion = 38
Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY
WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971
3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10
SIEVE ANIALYSIS lNVINI1111 ANALYSIS
I EV OPE IN - INI8 TOSIIEENN1-MLII
I
I - - i ii 0
I GRI SIZEto N OILS 1
I ANDLI IS
G VELIZE I
IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL
-APL ESN
DEPTH ELEY LL PI DESCRIPTIONNUSMBE
3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples
B Composite 26 13 Surface Course Blend as Placed Average of 58 samples
Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34
Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY
BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11
___ I
SIEVE ANALYSIS W11 ANKEm SIS
SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS
01 001
sodego
i i
U Ae
6 559 2 a65 3 2 1 6532 S
II GRAIN SIZE INMILLIMETERS
=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL
GRAVEL SN
I SAMPE DEPTH ELEV LL P)S DESCRIPTION
A omposite 28 10 Crusher Run
SAverage of 72 samples
B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples
Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20
REPUBLICUINISTRY 0OF OF
BOTSWANA WORKS amp COMMUNIGTIONS
TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12
I
SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM
-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U
I _
I1li
Ia _ Cu ve
N IC A11
IQI II
1 IG S IIIMETE
I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND
SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION
A Composite 34 15 Crusher Run Average of 74 samples
B Composite 29 12 Surface Course Blend as Placed
Average of 42 samples
MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15
REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA
ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N
NEW sy cKA
YORK NYT E-2 5 1 7 7
HIGHWAY PIT 32A Mwe FIGURE B-13
I I I I I I I I
APPENDIX C
I WATER WELL LOCATIONS
I I I I I I I I I
APPENDIX C WATER WELL LOCATIONS
WELL NO 3
Location Km 171 Lt of centerline 200 meters
Drill - 6 x 392
Ream - 8 x 92
Case - 6 x 84
Test - 24 Hours - 276
Pump 6000 G P H
Total depth - 392
Pumped at 150
24 Hr Drawdown - 3
Water Good
WELL NO 4
Location Km 175 - Lt of centerline 100 meters
Drill - 6 x 380
Ream - 8 x 82
Case - 7 x 82
Test - 276
Pump 1800 G P H
Total depth - 380
Pumped at 200
Drawdown 24 Hr - 100
Water Good
WELL NO 5 (Govt No 2436
Location Km 178 - Lt of centerline 115 meters
Test -276
Pump - 1400 G P H
Total depth - 160
Pumped at 140
24 Hr Drawdown - 60
Water Good C-1
WELL NO 6
Location Km 183 - Lt of centerline 60 meters
Drill - 6 x 436
Ream - 8 x 86
Case - 7 x 86
Test - 276
Pump - 500 G P H
Total depth - 436
Pumped at 250
24 Hr Drawdown - 150
Water Good
WELL NO 7 - (Govt No 2435)
Location Km 189 - Rt of centerline 100 meters
Clean amp Test
Pump - 6000 G P H
Pumped at 140
24 Hr Drawdown - 10
Water Good
WELL NO 14
Location Km 252 - Lt of centerline 100 meters
Drill - 6 x 250
Ream - 8 x 53
Case - 6 x 53
Test - 276
Pump - 6000 G P H
Total depth - 250
Pumped at 150
24 Hr Drawdown - 6
Water Good
C-2
WELL AT KM 256 MAINTENANCE FACILITY NO 3
Location Km 256 - Lt of centerline 200 meters
Depth - 100 feet
Water Rest Level - 42 feet
Depth Pump Set - 70 feet
24 Hr Test - 1800 G P H
WELL NO 15
Location Km 245 - Rt of centerline 40 meters
Drill - 6 x 260
Ream - 8 x 54
Case - 54
Test -276
Pump - 1500 G P H
Total depth - 260
Pumped at 200
24 Hr Drawdown - 140
Water Good
WELL NO 16 Location Km 236 -Rt of centerline 30 meters
Drill - 6 x 250
Ream - 8 x 22
Case - 6 x 22
Test - 276
Pump -6000 G P H
Total depth - 288
Pumped at 150
24 Hr Drawdown - 10
Water Good
C-3
WELL NO 17
Location Km 224 - Rt of centerline 30 meters
Drill - 10 x 89
Case - 8 x 85
Drill- 8x 43
Drill - 6 x 38
Case -6 x 132
Test - 276
Pump -2000 G P H
Total Depth - 170
Pumped at 100
24 Hr Drawdown - 11
Water Good
WELL NO 18
Location Km 217 - Lt of centerline 200 meters
Drill -i0 x 70
Case - 7 x 70
Drill - 7 x 52
Drill - 6 x 88
Case - 6 x 122
Test - 276
Pump 2400 G P H
Total depth - 210
Pumped at 200
24 Hr Drawdown - 140
Water Good
C-4
WELL NO 19
Location Km 213 - Lt of centerline 100 meters
Drill - 10 x 44
Case - 8 x 40
Drill - 8 x 76
Drill 6 x 130
Case - 6 x 120
Test - 276
Pump - 6000 G P H
Total depth - 210
Pumped at 60
24 Hr Drawdown - 10
Water Good
WELL NO 20
Location Km 143 - Rt of centerline 100 meters
Drill - 10 x 240
Case - 7 x 220
Drill -6 x 378
Case - 6 x 240
Case - 5 x 240
Test - 276
Pump -1500 G P H
Total depth - 618
Pumped at 460
24 Hr Drawdown - 105
Water slightly salty to taste but drinkable
C-5
WELL NO 23
Location Km 139 - Lt of centerline 100 meters
Drill - 12 x 290
Place amp Extract Case - 10 x 290
Drill - 8 x 30
Drill - 6 x 40
Case - 8 x 290
Case - 6 x 320
Test - 276
Pump - 1200 G P H
Total depth - 360
Pumped at 330
24 Hr Drawdown - 120
Water salty
WELL NO 24
Location Km 135 - Lt of centerline 500 meters
Drill - 12 x 270
Drill - 10 x 10
Case - 10 x 270
Drill -8 x 30
Case - 8 x 290
Case -6 x 310
Case - 5 x 320
Test -276
Pump -4000 +G P H
Total depth - 320
Pumped at 270
24 Hr Drawdown - 2
Water Salty
C-6
I
5
WELL KM 205 MAINTENANCE FACILITY NO 2
Location Km 105 - Lt of centerline 40 meters
Depth - 302 feet
~ Water Rest Level - 82 feet
Depth Pump Set - 150 feet
48 Hr Test - 3000 + G P H
WELL NO 26
Location Km 82 - Lt of centerline 100 meters
Drill - 12 x 145
5 -8 x145
Drill - 8 x 23
-Case
I Drill - 7 x 10
Case - 7 x 168
I Case - 6 x178
Test - 276
Pump - 1200 G P H
Total depth - 306
I Pumped at 140
24 Hr Drawdown - 35
I Water Good
C
I 0-7
WELL NO 27
Location Km 77 - Lt of centerline 100 meters
Drill - 12 x 174
Install amp Extract Case - 10 x 174
Case - 8 x 174
Drill - 9 x 68
Drill - 8 x 64
Case - 7 x 242
Case - 6 x 306
Test - 276
Pump - 4000 + G P H
Total Depth - 306
Pumpe at 240
24 Hr Drawdown - 0
Water Good
WELL NO 28- (Govt No 2465)
Location Km 63 - Rt of centerline 100 meters
Clean amp Extract Case - 300
Ream - 10 x 98
Ream - 8x 27
Ream - 6 x 12
Case - 8 x 98
Case - 6 x 125
Test - 276
Pump - 1000 + G P H
Total depth - 137
Pumped at 130
24 Hr Drawdown - 33
Water Good
C-8
WELL NO 30
Location Km 47 - Rt of centerline 400 meters
Drill - 12 x 132
Case - 10 x 89
Install amp Extract Case - 12 x 43
Drill - 10 x 117
Case - 7 x 242
Drill - 6 x 183
Install amp Extract Case - 6 x 408
Test - 276
Pump - 1000 G P H
Total depth - 408
Pumped at 160
24 Hr Drawdown - 77
Water Salty
WELL NO 31
- Lt of centerline 200 metersLocation Km 44
Drill - 12 x 110
Case - 10 x 100
Drill - 10 x 142
Case 8 x 142
Drill - 8 x 250
Case 7 x 392
Drill - 6 x 78
Test - 276
Pump - 3000 G P H
Total depth - 502
Pumped at 160
24 Hr Drawdown - 44
Water Salty
C-9
WELL NO 32
Location Km 42 - Lt of centerline 100 meters
Drill - 12 x 108
Case - 10 x 108
Drill - 10 x 212
Drill - 8 x 120
Case - 6 x 340
Case - 8 x 182
Test - 276
Pump - 3000 + G P H
Total depth - 448
Pumped at 160
24 Hr Drawdown - 20
Water Salty
WELL NO 34
Location Km 35 - Lt of centerline 200 meters
Drill - 12 x 230
Install amp Extract Case - 10 x 230
Drill - 8 x 30
Case -6 x 260
Drill - 6 x 160
Case -5 x 324
Case - 8 x 20
Test - 276
Pump -1000 + G P H
Total depth - 420
Pumped at 150
24 Hr Drawdown - 100
Water Salty
C-10
WELL NO 36
Location Km 7 N E along old track from Km 63
Drill - 12 x 180
Case - 10 x 180
Drill - 10 x 231
Case - 8 x 211
Drill- 8x 254
Case - 6 x 245
Test -276
Pump -4000 + G P H
Total depth - 265
Pumped at 180
24 Hr Drawdown - 0
Water Good
C-11
I 3 I 1 I I I I B j APPENDDC D
SYNOPSIS 0 KEY CORRESPONDENCE
3 DURING CONSTRUCTION
I pound I I I 1 I I
On September 1 1973 the Contractor confirmed the
estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts
On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project
On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be
obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated
On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine
On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation
On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension
On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension
On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval
On October 15 1973 the Engineer returned the construction progress schedule for correction
On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim
D-I
On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor
On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project
On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25
On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter
On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents
On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract
On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised
On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading
On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule
On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request
On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period
D-2
On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report
On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material
On August 19 1974 the Contractor submitted an updated construction progress schedule for approval
On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases
On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor
On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor
On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project
On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course
On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country
On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course
On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions
On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule
On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress
D-3
On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract
On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana
On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor
On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion
On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations
On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases
On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season
On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees
On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections
On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project
On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course
On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project
On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract
D-4
October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request
On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor
On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620
On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project
On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y
completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense
On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted
On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project
On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim
On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic
On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor
On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976
D-5
On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time
On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares
On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material
On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500
On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor
On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula
On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana
OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected
On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road
On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road
Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10
On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued
On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced
On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091
On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091
Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued
D-6
I I IUUU U U UU I U
E PROJECT PHOTOGRAPHS
I IIIU U I
I Crushing Plants Surface Course
Pit 2A
Pug Mill Blending Surface Course
Pit 25A
II Surface Course
Pit 25A
UURYPTOERTOSE Pug Mil Blending
Road Reserve Bush Clearing
Km 242
U
Embankment Construction Km 287
IN
Road Construction Water Supply
Km 189
ROADWAY UNDER CONSTRUTION
II
E-2
Stockpiling Material Base Course
Special Embankment Construction Km 232
Watering of Embankment Km 257
ROADWAY UNDER CONSTRUCTION E-3
Culvert Assembly
Twin Culvert with Sand-Cement Pitching
Multiple Culverts with Sand-Cement Pitching
CULVERT INSTALLATIONS E- 4
AT Km 25
AT Km 194
Emergency Landing Strip Kra 2605
FINISHED ROADWAY E- 5
AT Km 286
AT Chobe By-Pass Junction Km 297
I Chobe By-Pass Road Near Ngoma Bridge
E-6FINISHED ROADWAY
NATA - KAZUNGULA ROAD
+--- 121
y T
MATERIALS UTILIZATION DIAGRAM Fgure R-Z
NAT A - KAZ UN GULA ROAD
07 2 230K300 220 220 232 252
I 3 3 2
MATERIALS UTILIZATION DIAGRAM Figure 2-3
itLT-m
CHOBE RIVER BY-PASS ROAD 02__ Q___ 0 60 40 - 0 50 0 i
-F-CEL
-Tl J-II II
MATERIALS UTILIZATION DIAGRAM Figure B-4
3 SIEVE ANALYSIS SMI~ia VIII
IY UN In~ VI STAISRS SIEVE NUMBfh SUE9 - usuLguNuus O-- aoIiUl- I1
11I a to to 0 i oIIIa lf I
II
SN Cu ye B
II N
o
i B _ ___~ N II 1 l s - Curi e At-
I 2 I a 6 4 2 i5 4 3 2 a -
GRAIN I IZE MILTERS
SILT AND CLAY SOILS GRAVEL SAND
I NUMBE1RSAMPLE DEPTH LL KIE IPTIONIELEV P1 ECIT
A Composit 38 19 CrusherAverage Runof 192 samples
B Composit 33 17 Surface Course Blend asAverage of 236 samples placed
MDD 1960 kgm Los Angeles Abrasion = 42 Average Blend Added 15=
REPUBLIC OF BOTSWANA TI PPETTS-ASSETT-NcCAIThY-STRATTOU MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY BOTSWANA-ZAMBIA GRAIN SIZE DISTRIBUTION BY DmArTE Q76HIGHWAY j PIT 2A DOi FIGURE B-5
E ANLYSISSIEVE NALYSIS NI
OPEING - In jS PhIMS-SEVE iNRh3EN son - MILLIMETER
V11 6plusmn SSIEVE
6 i S 0-4 0 10 miUS) 3055 3 001mesa a
9 I I I - -
Crye B
S bull
1TCrii INN20 1 e A- NI deg I FIK 46591 2 a045 4 2 1115 5 2 6
GRIISZ IN MILLIMETERS
COACE iE NtIUM FI SILT AD CLAY SOILSGRAVEL SAND
5r IBSAMPLE DEPTH ELEV LLP1
A Composite 28 10 Crusher Run Average of 229 samples
B Composite 28 11 Surface Course Blend as Placed Average of 58 samples
2050 kgm3 Averaoe Blend Added shy
TIPPETTS-ASETT-NCCARTIY-STATTONREPUBLIC OF BOTSWANA NEW YORK NY
MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS
BRAIN SIZE DISTRIBUTION BY NCZ jAATE9 876BOTSWANA-ZAMBIA
HIGHWAY PIT 14 amp 14A OWN FIGURE B-6
i
S ANALYSIS 01 ANALYSIS
SIEVE - n -IIII- SIZ-MII- - IN i
It a s 1
Ue a -- e B
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6l51 10 8 $514 1 O is 05I I 21 8GANSZNILMTR OA RE Filo 9OA-1i 1DI UM F log S ILT AND CLAY SO ILS
GRAVEL nSAND
E--l I UNEASMPLEDEPlTH ELEV LL P1 KWKIPTION
A Composite 36 19 Crusher Run
Average of 116 Samples
B Composite 36 15 Surface Course Blend Average of 138 samples
H GHWA E SA 18 SILT ANDURCLA-SIL
3kgm Los Angeles Abrasion 28
Av agau Pnd AAd = 907 ITI UETT$-ABBTT-NcentcentARTNY-STRATTON
NEW YORK NY
REPUBLIC OF BOTSWANA
MINISTRY OF WORKS amp COM24UNICATIONSIT NINEERS1
I I MGIELI7 I 1 8AIIGIWAE
I
4
SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU
V 1 Oe 001l
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KI zz7llfl$zIIIti z I
low560
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IGRAIN SIZE IN MILLIMETERS
COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS
GRAVEL SAND
SAMP DEPTH ELEV L P1 0NBERIIPTI
A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples
B Composit( 28 13 Surface Course Blend as Placed
Average of 85 samples
Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA
REPUBLIC OF BOTSWANA TI EfTTS-AIETT-NCARTY-STRATTOi ITTqTPI yen O WOVQ A n rn WTraTTn~lz ENGINEERS NEW YOlK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8
-D IUR IB
II SIEVE ANALYIIS 1411 I LYIlMll
[urn $11min - I I ITUSE IVV I - mampINimums1 -l0 n 001
a1 i 4 is s 0 aL w I 2 0665S a a 4 i 0i
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I RI IE IN M IEER
CfliEI FIN g o au SIT SILFIN M40 5C o432 14593 ry B6
ver 7 samples
NUMBE NERPI
Ay I GRAIN SIZE IN MILLIMETR
5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND
A Q A- Aii dd d~A
IMUBEIRIIIIPIi
3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables
B Composit 26 13 Surface Course BlendU as Placed
Average of 79 samples
AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =
REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9
SIEVE ANALYSIS IMmv na awLYoia
SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I
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$05 9 2
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GRAIN SIZE IN MILLIMETERS
1 111I
NU BE GRAVEL
COARSE
I
MEDIUM
I SAND
FSILT AND CLAY SOILS
SAMPLE4 DEP EEY 1 SCBI1PTIORI
A
B
Composite
Composite
38
26
17
13
Crusher Run Basaltic Aggregate
Average of 176 samples
Surface Course Blend -s Placed Average of 58 samples
Average MDD = 2135 kgm Los Angeles Abrasion = 38
Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY
WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971
3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10
SIEVE ANIALYSIS lNVINI1111 ANALYSIS
I EV OPE IN - INI8 TOSIIEENN1-MLII
I
I - - i ii 0
I GRI SIZEto N OILS 1
I ANDLI IS
G VELIZE I
IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL
-APL ESN
DEPTH ELEY LL PI DESCRIPTIONNUSMBE
3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples
B Composite 26 13 Surface Course Blend as Placed Average of 58 samples
Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34
Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY
BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11
___ I
SIEVE ANALYSIS W11 ANKEm SIS
SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS
01 001
sodego
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6 559 2 a65 3 2 1 6532 S
II GRAIN SIZE INMILLIMETERS
=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL
GRAVEL SN
I SAMPE DEPTH ELEV LL P)S DESCRIPTION
A omposite 28 10 Crusher Run
SAverage of 72 samples
B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples
Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20
REPUBLICUINISTRY 0OF OF
BOTSWANA WORKS amp COMMUNIGTIONS
TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12
I
SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM
-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U
I _
I1li
Ia _ Cu ve
N IC A11
IQI II
1 IG S IIIMETE
I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND
SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION
A Composite 34 15 Crusher Run Average of 74 samples
B Composite 29 12 Surface Course Blend as Placed
Average of 42 samples
MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15
REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA
ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N
NEW sy cKA
YORK NYT E-2 5 1 7 7
HIGHWAY PIT 32A Mwe FIGURE B-13
I I I I I I I I
APPENDIX C
I WATER WELL LOCATIONS
I I I I I I I I I
APPENDIX C WATER WELL LOCATIONS
WELL NO 3
Location Km 171 Lt of centerline 200 meters
Drill - 6 x 392
Ream - 8 x 92
Case - 6 x 84
Test - 24 Hours - 276
Pump 6000 G P H
Total depth - 392
Pumped at 150
24 Hr Drawdown - 3
Water Good
WELL NO 4
Location Km 175 - Lt of centerline 100 meters
Drill - 6 x 380
Ream - 8 x 82
Case - 7 x 82
Test - 276
Pump 1800 G P H
Total depth - 380
Pumped at 200
Drawdown 24 Hr - 100
Water Good
WELL NO 5 (Govt No 2436
Location Km 178 - Lt of centerline 115 meters
Test -276
Pump - 1400 G P H
Total depth - 160
Pumped at 140
24 Hr Drawdown - 60
Water Good C-1
WELL NO 6
Location Km 183 - Lt of centerline 60 meters
Drill - 6 x 436
Ream - 8 x 86
Case - 7 x 86
Test - 276
Pump - 500 G P H
Total depth - 436
Pumped at 250
24 Hr Drawdown - 150
Water Good
WELL NO 7 - (Govt No 2435)
Location Km 189 - Rt of centerline 100 meters
Clean amp Test
Pump - 6000 G P H
Pumped at 140
24 Hr Drawdown - 10
Water Good
WELL NO 14
Location Km 252 - Lt of centerline 100 meters
Drill - 6 x 250
Ream - 8 x 53
Case - 6 x 53
Test - 276
Pump - 6000 G P H
Total depth - 250
Pumped at 150
24 Hr Drawdown - 6
Water Good
C-2
WELL AT KM 256 MAINTENANCE FACILITY NO 3
Location Km 256 - Lt of centerline 200 meters
Depth - 100 feet
Water Rest Level - 42 feet
Depth Pump Set - 70 feet
24 Hr Test - 1800 G P H
WELL NO 15
Location Km 245 - Rt of centerline 40 meters
Drill - 6 x 260
Ream - 8 x 54
Case - 54
Test -276
Pump - 1500 G P H
Total depth - 260
Pumped at 200
24 Hr Drawdown - 140
Water Good
WELL NO 16 Location Km 236 -Rt of centerline 30 meters
Drill - 6 x 250
Ream - 8 x 22
Case - 6 x 22
Test - 276
Pump -6000 G P H
Total depth - 288
Pumped at 150
24 Hr Drawdown - 10
Water Good
C-3
WELL NO 17
Location Km 224 - Rt of centerline 30 meters
Drill - 10 x 89
Case - 8 x 85
Drill- 8x 43
Drill - 6 x 38
Case -6 x 132
Test - 276
Pump -2000 G P H
Total Depth - 170
Pumped at 100
24 Hr Drawdown - 11
Water Good
WELL NO 18
Location Km 217 - Lt of centerline 200 meters
Drill -i0 x 70
Case - 7 x 70
Drill - 7 x 52
Drill - 6 x 88
Case - 6 x 122
Test - 276
Pump 2400 G P H
Total depth - 210
Pumped at 200
24 Hr Drawdown - 140
Water Good
C-4
WELL NO 19
Location Km 213 - Lt of centerline 100 meters
Drill - 10 x 44
Case - 8 x 40
Drill - 8 x 76
Drill 6 x 130
Case - 6 x 120
Test - 276
Pump - 6000 G P H
Total depth - 210
Pumped at 60
24 Hr Drawdown - 10
Water Good
WELL NO 20
Location Km 143 - Rt of centerline 100 meters
Drill - 10 x 240
Case - 7 x 220
Drill -6 x 378
Case - 6 x 240
Case - 5 x 240
Test - 276
Pump -1500 G P H
Total depth - 618
Pumped at 460
24 Hr Drawdown - 105
Water slightly salty to taste but drinkable
C-5
WELL NO 23
Location Km 139 - Lt of centerline 100 meters
Drill - 12 x 290
Place amp Extract Case - 10 x 290
Drill - 8 x 30
Drill - 6 x 40
Case - 8 x 290
Case - 6 x 320
Test - 276
Pump - 1200 G P H
Total depth - 360
Pumped at 330
24 Hr Drawdown - 120
Water salty
WELL NO 24
Location Km 135 - Lt of centerline 500 meters
Drill - 12 x 270
Drill - 10 x 10
Case - 10 x 270
Drill -8 x 30
Case - 8 x 290
Case -6 x 310
Case - 5 x 320
Test -276
Pump -4000 +G P H
Total depth - 320
Pumped at 270
24 Hr Drawdown - 2
Water Salty
C-6
I
5
WELL KM 205 MAINTENANCE FACILITY NO 2
Location Km 105 - Lt of centerline 40 meters
Depth - 302 feet
~ Water Rest Level - 82 feet
Depth Pump Set - 150 feet
48 Hr Test - 3000 + G P H
WELL NO 26
Location Km 82 - Lt of centerline 100 meters
Drill - 12 x 145
5 -8 x145
Drill - 8 x 23
-Case
I Drill - 7 x 10
Case - 7 x 168
I Case - 6 x178
Test - 276
Pump - 1200 G P H
Total depth - 306
I Pumped at 140
24 Hr Drawdown - 35
I Water Good
C
I 0-7
WELL NO 27
Location Km 77 - Lt of centerline 100 meters
Drill - 12 x 174
Install amp Extract Case - 10 x 174
Case - 8 x 174
Drill - 9 x 68
Drill - 8 x 64
Case - 7 x 242
Case - 6 x 306
Test - 276
Pump - 4000 + G P H
Total Depth - 306
Pumpe at 240
24 Hr Drawdown - 0
Water Good
WELL NO 28- (Govt No 2465)
Location Km 63 - Rt of centerline 100 meters
Clean amp Extract Case - 300
Ream - 10 x 98
Ream - 8x 27
Ream - 6 x 12
Case - 8 x 98
Case - 6 x 125
Test - 276
Pump - 1000 + G P H
Total depth - 137
Pumped at 130
24 Hr Drawdown - 33
Water Good
C-8
WELL NO 30
Location Km 47 - Rt of centerline 400 meters
Drill - 12 x 132
Case - 10 x 89
Install amp Extract Case - 12 x 43
Drill - 10 x 117
Case - 7 x 242
Drill - 6 x 183
Install amp Extract Case - 6 x 408
Test - 276
Pump - 1000 G P H
Total depth - 408
Pumped at 160
24 Hr Drawdown - 77
Water Salty
WELL NO 31
- Lt of centerline 200 metersLocation Km 44
Drill - 12 x 110
Case - 10 x 100
Drill - 10 x 142
Case 8 x 142
Drill - 8 x 250
Case 7 x 392
Drill - 6 x 78
Test - 276
Pump - 3000 G P H
Total depth - 502
Pumped at 160
24 Hr Drawdown - 44
Water Salty
C-9
WELL NO 32
Location Km 42 - Lt of centerline 100 meters
Drill - 12 x 108
Case - 10 x 108
Drill - 10 x 212
Drill - 8 x 120
Case - 6 x 340
Case - 8 x 182
Test - 276
Pump - 3000 + G P H
Total depth - 448
Pumped at 160
24 Hr Drawdown - 20
Water Salty
WELL NO 34
Location Km 35 - Lt of centerline 200 meters
Drill - 12 x 230
Install amp Extract Case - 10 x 230
Drill - 8 x 30
Case -6 x 260
Drill - 6 x 160
Case -5 x 324
Case - 8 x 20
Test - 276
Pump -1000 + G P H
Total depth - 420
Pumped at 150
24 Hr Drawdown - 100
Water Salty
C-10
WELL NO 36
Location Km 7 N E along old track from Km 63
Drill - 12 x 180
Case - 10 x 180
Drill - 10 x 231
Case - 8 x 211
Drill- 8x 254
Case - 6 x 245
Test -276
Pump -4000 + G P H
Total depth - 265
Pumped at 180
24 Hr Drawdown - 0
Water Good
C-11
I 3 I 1 I I I I B j APPENDDC D
SYNOPSIS 0 KEY CORRESPONDENCE
3 DURING CONSTRUCTION
I pound I I I 1 I I
On September 1 1973 the Contractor confirmed the
estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts
On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project
On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be
obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated
On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine
On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation
On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension
On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension
On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval
On October 15 1973 the Engineer returned the construction progress schedule for correction
On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim
D-I
On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor
On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project
On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25
On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter
On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents
On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract
On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised
On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading
On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule
On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request
On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period
D-2
On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report
On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material
On August 19 1974 the Contractor submitted an updated construction progress schedule for approval
On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases
On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor
On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor
On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project
On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course
On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country
On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course
On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions
On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule
On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress
D-3
On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract
On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana
On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor
On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion
On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations
On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases
On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season
On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees
On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections
On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project
On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course
On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project
On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract
D-4
October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request
On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor
On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620
On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project
On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y
completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense
On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted
On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project
On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim
On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic
On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor
On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976
D-5
On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time
On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares
On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material
On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500
On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor
On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula
On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana
OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected
On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road
On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road
Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10
On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued
On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced
On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091
On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091
Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued
D-6
I I IUUU U U UU I U
E PROJECT PHOTOGRAPHS
I IIIU U I
I Crushing Plants Surface Course
Pit 2A
Pug Mill Blending Surface Course
Pit 25A
II Surface Course
Pit 25A
UURYPTOERTOSE Pug Mil Blending
Road Reserve Bush Clearing
Km 242
U
Embankment Construction Km 287
IN
Road Construction Water Supply
Km 189
ROADWAY UNDER CONSTRUTION
II
E-2
Stockpiling Material Base Course
Special Embankment Construction Km 232
Watering of Embankment Km 257
ROADWAY UNDER CONSTRUCTION E-3
Culvert Assembly
Twin Culvert with Sand-Cement Pitching
Multiple Culverts with Sand-Cement Pitching
CULVERT INSTALLATIONS E- 4
AT Km 25
AT Km 194
Emergency Landing Strip Kra 2605
FINISHED ROADWAY E- 5
AT Km 286
AT Chobe By-Pass Junction Km 297
I Chobe By-Pass Road Near Ngoma Bridge
E-6FINISHED ROADWAY
NAT A - KAZ UN GULA ROAD
07 2 230K300 220 220 232 252
I 3 3 2
MATERIALS UTILIZATION DIAGRAM Figure 2-3
itLT-m
CHOBE RIVER BY-PASS ROAD 02__ Q___ 0 60 40 - 0 50 0 i
-F-CEL
-Tl J-II II
MATERIALS UTILIZATION DIAGRAM Figure B-4
3 SIEVE ANALYSIS SMI~ia VIII
IY UN In~ VI STAISRS SIEVE NUMBfh SUE9 - usuLguNuus O-- aoIiUl- I1
11I a to to 0 i oIIIa lf I
II
SN Cu ye B
II N
o
i B _ ___~ N II 1 l s - Curi e At-
I 2 I a 6 4 2 i5 4 3 2 a -
GRAIN I IZE MILTERS
SILT AND CLAY SOILS GRAVEL SAND
I NUMBE1RSAMPLE DEPTH LL KIE IPTIONIELEV P1 ECIT
A Composit 38 19 CrusherAverage Runof 192 samples
B Composit 33 17 Surface Course Blend asAverage of 236 samples placed
MDD 1960 kgm Los Angeles Abrasion = 42 Average Blend Added 15=
REPUBLIC OF BOTSWANA TI PPETTS-ASSETT-NcCAIThY-STRATTOU MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY BOTSWANA-ZAMBIA GRAIN SIZE DISTRIBUTION BY DmArTE Q76HIGHWAY j PIT 2A DOi FIGURE B-5
E ANLYSISSIEVE NALYSIS NI
OPEING - In jS PhIMS-SEVE iNRh3EN son - MILLIMETER
V11 6plusmn SSIEVE
6 i S 0-4 0 10 miUS) 3055 3 001mesa a
9 I I I - -
Crye B
S bull
1TCrii INN20 1 e A- NI deg I FIK 46591 2 a045 4 2 1115 5 2 6
GRIISZ IN MILLIMETERS
COACE iE NtIUM FI SILT AD CLAY SOILSGRAVEL SAND
5r IBSAMPLE DEPTH ELEV LLP1
A Composite 28 10 Crusher Run Average of 229 samples
B Composite 28 11 Surface Course Blend as Placed Average of 58 samples
2050 kgm3 Averaoe Blend Added shy
TIPPETTS-ASETT-NCCARTIY-STATTONREPUBLIC OF BOTSWANA NEW YORK NY
MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS
BRAIN SIZE DISTRIBUTION BY NCZ jAATE9 876BOTSWANA-ZAMBIA
HIGHWAY PIT 14 amp 14A OWN FIGURE B-6
i
S ANALYSIS 01 ANALYSIS
SIEVE - n -IIII- SIZ-MII- - IN i
It a s 1
Ue a -- e B
- 1 -I-[_I - I I I
6l51 10 8 $514 1 O is 05I I 21 8GANSZNILMTR OA RE Filo 9OA-1i 1DI UM F log S ILT AND CLAY SO ILS
GRAVEL nSAND
E--l I UNEASMPLEDEPlTH ELEV LL P1 KWKIPTION
A Composite 36 19 Crusher Run
Average of 116 Samples
B Composite 36 15 Surface Course Blend Average of 138 samples
H GHWA E SA 18 SILT ANDURCLA-SIL
3kgm Los Angeles Abrasion 28
Av agau Pnd AAd = 907 ITI UETT$-ABBTT-NcentcentARTNY-STRATTON
NEW YORK NY
REPUBLIC OF BOTSWANA
MINISTRY OF WORKS amp COM24UNICATIONSIT NINEERS1
I I MGIELI7 I 1 8AIIGIWAE
I
4
SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU
V 1 Oe 001l
- -r--I-I -- I
S E- -IN S
KI zz7llfl$zIIIti z I
low560
20
2
IGRAIN SIZE IN MILLIMETERS
COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS
GRAVEL SAND
SAMP DEPTH ELEV L P1 0NBERIIPTI
A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples
B Composit( 28 13 Surface Course Blend as Placed
Average of 85 samples
Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA
REPUBLIC OF BOTSWANA TI EfTTS-AIETT-NCARTY-STRATTOi ITTqTPI yen O WOVQ A n rn WTraTTn~lz ENGINEERS NEW YOlK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8
-D IUR IB
II SIEVE ANALYIIS 1411 I LYIlMll
[urn $11min - I I ITUSE IVV I - mampINimums1 -l0 n 001
a1 i 4 is s 0 aL w I 2 0665S a a 4 i 0i
-7sl
96---
I RI IE IN M IEER
CfliEI FIN g o au SIT SILFIN M40 5C o432 14593 ry B6
ver 7 samples
NUMBE NERPI
Ay I GRAIN SIZE IN MILLIMETR
5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND
A Q A- Aii dd d~A
IMUBEIRIIIIPIi
3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables
B Composit 26 13 Surface Course BlendU as Placed
Average of 79 samples
AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =
REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9
SIEVE ANALYSIS IMmv na awLYoia
SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I
I- 01 001
e---__
Ir1 -NIP_]
20
OA
$05 9 2
E
I
86543
I
7tN
2 1 65
_OAlEED t
5 2
FN
I
GRAIN SIZE IN MILLIMETERS
1 111I
NU BE GRAVEL
COARSE
I
MEDIUM
I SAND
FSILT AND CLAY SOILS
SAMPLE4 DEP EEY 1 SCBI1PTIORI
A
B
Composite
Composite
38
26
17
13
Crusher Run Basaltic Aggregate
Average of 176 samples
Surface Course Blend -s Placed Average of 58 samples
Average MDD = 2135 kgm Los Angeles Abrasion = 38
Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY
WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971
3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10
SIEVE ANIALYSIS lNVINI1111 ANALYSIS
I EV OPE IN - INI8 TOSIIEENN1-MLII
I
I - - i ii 0
I GRI SIZEto N OILS 1
I ANDLI IS
G VELIZE I
IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL
-APL ESN
DEPTH ELEY LL PI DESCRIPTIONNUSMBE
3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples
B Composite 26 13 Surface Course Blend as Placed Average of 58 samples
Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34
Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY
BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11
___ I
SIEVE ANALYSIS W11 ANKEm SIS
SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS
01 001
sodego
i i
U Ae
6 559 2 a65 3 2 1 6532 S
II GRAIN SIZE INMILLIMETERS
=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL
GRAVEL SN
I SAMPE DEPTH ELEV LL P)S DESCRIPTION
A omposite 28 10 Crusher Run
SAverage of 72 samples
B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples
Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20
REPUBLICUINISTRY 0OF OF
BOTSWANA WORKS amp COMMUNIGTIONS
TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12
I
SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM
-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U
I _
I1li
Ia _ Cu ve
N IC A11
IQI II
1 IG S IIIMETE
I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND
SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION
A Composite 34 15 Crusher Run Average of 74 samples
B Composite 29 12 Surface Course Blend as Placed
Average of 42 samples
MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15
REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA
ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N
NEW sy cKA
YORK NYT E-2 5 1 7 7
HIGHWAY PIT 32A Mwe FIGURE B-13
I I I I I I I I
APPENDIX C
I WATER WELL LOCATIONS
I I I I I I I I I
APPENDIX C WATER WELL LOCATIONS
WELL NO 3
Location Km 171 Lt of centerline 200 meters
Drill - 6 x 392
Ream - 8 x 92
Case - 6 x 84
Test - 24 Hours - 276
Pump 6000 G P H
Total depth - 392
Pumped at 150
24 Hr Drawdown - 3
Water Good
WELL NO 4
Location Km 175 - Lt of centerline 100 meters
Drill - 6 x 380
Ream - 8 x 82
Case - 7 x 82
Test - 276
Pump 1800 G P H
Total depth - 380
Pumped at 200
Drawdown 24 Hr - 100
Water Good
WELL NO 5 (Govt No 2436
Location Km 178 - Lt of centerline 115 meters
Test -276
Pump - 1400 G P H
Total depth - 160
Pumped at 140
24 Hr Drawdown - 60
Water Good C-1
WELL NO 6
Location Km 183 - Lt of centerline 60 meters
Drill - 6 x 436
Ream - 8 x 86
Case - 7 x 86
Test - 276
Pump - 500 G P H
Total depth - 436
Pumped at 250
24 Hr Drawdown - 150
Water Good
WELL NO 7 - (Govt No 2435)
Location Km 189 - Rt of centerline 100 meters
Clean amp Test
Pump - 6000 G P H
Pumped at 140
24 Hr Drawdown - 10
Water Good
WELL NO 14
Location Km 252 - Lt of centerline 100 meters
Drill - 6 x 250
Ream - 8 x 53
Case - 6 x 53
Test - 276
Pump - 6000 G P H
Total depth - 250
Pumped at 150
24 Hr Drawdown - 6
Water Good
C-2
WELL AT KM 256 MAINTENANCE FACILITY NO 3
Location Km 256 - Lt of centerline 200 meters
Depth - 100 feet
Water Rest Level - 42 feet
Depth Pump Set - 70 feet
24 Hr Test - 1800 G P H
WELL NO 15
Location Km 245 - Rt of centerline 40 meters
Drill - 6 x 260
Ream - 8 x 54
Case - 54
Test -276
Pump - 1500 G P H
Total depth - 260
Pumped at 200
24 Hr Drawdown - 140
Water Good
WELL NO 16 Location Km 236 -Rt of centerline 30 meters
Drill - 6 x 250
Ream - 8 x 22
Case - 6 x 22
Test - 276
Pump -6000 G P H
Total depth - 288
Pumped at 150
24 Hr Drawdown - 10
Water Good
C-3
WELL NO 17
Location Km 224 - Rt of centerline 30 meters
Drill - 10 x 89
Case - 8 x 85
Drill- 8x 43
Drill - 6 x 38
Case -6 x 132
Test - 276
Pump -2000 G P H
Total Depth - 170
Pumped at 100
24 Hr Drawdown - 11
Water Good
WELL NO 18
Location Km 217 - Lt of centerline 200 meters
Drill -i0 x 70
Case - 7 x 70
Drill - 7 x 52
Drill - 6 x 88
Case - 6 x 122
Test - 276
Pump 2400 G P H
Total depth - 210
Pumped at 200
24 Hr Drawdown - 140
Water Good
C-4
WELL NO 19
Location Km 213 - Lt of centerline 100 meters
Drill - 10 x 44
Case - 8 x 40
Drill - 8 x 76
Drill 6 x 130
Case - 6 x 120
Test - 276
Pump - 6000 G P H
Total depth - 210
Pumped at 60
24 Hr Drawdown - 10
Water Good
WELL NO 20
Location Km 143 - Rt of centerline 100 meters
Drill - 10 x 240
Case - 7 x 220
Drill -6 x 378
Case - 6 x 240
Case - 5 x 240
Test - 276
Pump -1500 G P H
Total depth - 618
Pumped at 460
24 Hr Drawdown - 105
Water slightly salty to taste but drinkable
C-5
WELL NO 23
Location Km 139 - Lt of centerline 100 meters
Drill - 12 x 290
Place amp Extract Case - 10 x 290
Drill - 8 x 30
Drill - 6 x 40
Case - 8 x 290
Case - 6 x 320
Test - 276
Pump - 1200 G P H
Total depth - 360
Pumped at 330
24 Hr Drawdown - 120
Water salty
WELL NO 24
Location Km 135 - Lt of centerline 500 meters
Drill - 12 x 270
Drill - 10 x 10
Case - 10 x 270
Drill -8 x 30
Case - 8 x 290
Case -6 x 310
Case - 5 x 320
Test -276
Pump -4000 +G P H
Total depth - 320
Pumped at 270
24 Hr Drawdown - 2
Water Salty
C-6
I
5
WELL KM 205 MAINTENANCE FACILITY NO 2
Location Km 105 - Lt of centerline 40 meters
Depth - 302 feet
~ Water Rest Level - 82 feet
Depth Pump Set - 150 feet
48 Hr Test - 3000 + G P H
WELL NO 26
Location Km 82 - Lt of centerline 100 meters
Drill - 12 x 145
5 -8 x145
Drill - 8 x 23
-Case
I Drill - 7 x 10
Case - 7 x 168
I Case - 6 x178
Test - 276
Pump - 1200 G P H
Total depth - 306
I Pumped at 140
24 Hr Drawdown - 35
I Water Good
C
I 0-7
WELL NO 27
Location Km 77 - Lt of centerline 100 meters
Drill - 12 x 174
Install amp Extract Case - 10 x 174
Case - 8 x 174
Drill - 9 x 68
Drill - 8 x 64
Case - 7 x 242
Case - 6 x 306
Test - 276
Pump - 4000 + G P H
Total Depth - 306
Pumpe at 240
24 Hr Drawdown - 0
Water Good
WELL NO 28- (Govt No 2465)
Location Km 63 - Rt of centerline 100 meters
Clean amp Extract Case - 300
Ream - 10 x 98
Ream - 8x 27
Ream - 6 x 12
Case - 8 x 98
Case - 6 x 125
Test - 276
Pump - 1000 + G P H
Total depth - 137
Pumped at 130
24 Hr Drawdown - 33
Water Good
C-8
WELL NO 30
Location Km 47 - Rt of centerline 400 meters
Drill - 12 x 132
Case - 10 x 89
Install amp Extract Case - 12 x 43
Drill - 10 x 117
Case - 7 x 242
Drill - 6 x 183
Install amp Extract Case - 6 x 408
Test - 276
Pump - 1000 G P H
Total depth - 408
Pumped at 160
24 Hr Drawdown - 77
Water Salty
WELL NO 31
- Lt of centerline 200 metersLocation Km 44
Drill - 12 x 110
Case - 10 x 100
Drill - 10 x 142
Case 8 x 142
Drill - 8 x 250
Case 7 x 392
Drill - 6 x 78
Test - 276
Pump - 3000 G P H
Total depth - 502
Pumped at 160
24 Hr Drawdown - 44
Water Salty
C-9
WELL NO 32
Location Km 42 - Lt of centerline 100 meters
Drill - 12 x 108
Case - 10 x 108
Drill - 10 x 212
Drill - 8 x 120
Case - 6 x 340
Case - 8 x 182
Test - 276
Pump - 3000 + G P H
Total depth - 448
Pumped at 160
24 Hr Drawdown - 20
Water Salty
WELL NO 34
Location Km 35 - Lt of centerline 200 meters
Drill - 12 x 230
Install amp Extract Case - 10 x 230
Drill - 8 x 30
Case -6 x 260
Drill - 6 x 160
Case -5 x 324
Case - 8 x 20
Test - 276
Pump -1000 + G P H
Total depth - 420
Pumped at 150
24 Hr Drawdown - 100
Water Salty
C-10
WELL NO 36
Location Km 7 N E along old track from Km 63
Drill - 12 x 180
Case - 10 x 180
Drill - 10 x 231
Case - 8 x 211
Drill- 8x 254
Case - 6 x 245
Test -276
Pump -4000 + G P H
Total depth - 265
Pumped at 180
24 Hr Drawdown - 0
Water Good
C-11
I 3 I 1 I I I I B j APPENDDC D
SYNOPSIS 0 KEY CORRESPONDENCE
3 DURING CONSTRUCTION
I pound I I I 1 I I
On September 1 1973 the Contractor confirmed the
estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts
On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project
On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be
obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated
On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine
On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation
On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension
On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension
On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval
On October 15 1973 the Engineer returned the construction progress schedule for correction
On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim
D-I
On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor
On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project
On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25
On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter
On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents
On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract
On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised
On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading
On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule
On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request
On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period
D-2
On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report
On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material
On August 19 1974 the Contractor submitted an updated construction progress schedule for approval
On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases
On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor
On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor
On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project
On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course
On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country
On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course
On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions
On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule
On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress
D-3
On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract
On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana
On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor
On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion
On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations
On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases
On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season
On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees
On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections
On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project
On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course
On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project
On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract
D-4
October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request
On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor
On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620
On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project
On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y
completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense
On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted
On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project
On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim
On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic
On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor
On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976
D-5
On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time
On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares
On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material
On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500
On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor
On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula
On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana
OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected
On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road
On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road
Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10
On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued
On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced
On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091
On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091
Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued
D-6
I I IUUU U U UU I U
E PROJECT PHOTOGRAPHS
I IIIU U I
I Crushing Plants Surface Course
Pit 2A
Pug Mill Blending Surface Course
Pit 25A
II Surface Course
Pit 25A
UURYPTOERTOSE Pug Mil Blending
Road Reserve Bush Clearing
Km 242
U
Embankment Construction Km 287
IN
Road Construction Water Supply
Km 189
ROADWAY UNDER CONSTRUTION
II
E-2
Stockpiling Material Base Course
Special Embankment Construction Km 232
Watering of Embankment Km 257
ROADWAY UNDER CONSTRUCTION E-3
Culvert Assembly
Twin Culvert with Sand-Cement Pitching
Multiple Culverts with Sand-Cement Pitching
CULVERT INSTALLATIONS E- 4
AT Km 25
AT Km 194
Emergency Landing Strip Kra 2605
FINISHED ROADWAY E- 5
AT Km 286
AT Chobe By-Pass Junction Km 297
I Chobe By-Pass Road Near Ngoma Bridge
E-6FINISHED ROADWAY
itLT-m
CHOBE RIVER BY-PASS ROAD 02__ Q___ 0 60 40 - 0 50 0 i
-F-CEL
-Tl J-II II
MATERIALS UTILIZATION DIAGRAM Figure B-4
3 SIEVE ANALYSIS SMI~ia VIII
IY UN In~ VI STAISRS SIEVE NUMBfh SUE9 - usuLguNuus O-- aoIiUl- I1
11I a to to 0 i oIIIa lf I
II
SN Cu ye B
II N
o
i B _ ___~ N II 1 l s - Curi e At-
I 2 I a 6 4 2 i5 4 3 2 a -
GRAIN I IZE MILTERS
SILT AND CLAY SOILS GRAVEL SAND
I NUMBE1RSAMPLE DEPTH LL KIE IPTIONIELEV P1 ECIT
A Composit 38 19 CrusherAverage Runof 192 samples
B Composit 33 17 Surface Course Blend asAverage of 236 samples placed
MDD 1960 kgm Los Angeles Abrasion = 42 Average Blend Added 15=
REPUBLIC OF BOTSWANA TI PPETTS-ASSETT-NcCAIThY-STRATTOU MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY BOTSWANA-ZAMBIA GRAIN SIZE DISTRIBUTION BY DmArTE Q76HIGHWAY j PIT 2A DOi FIGURE B-5
E ANLYSISSIEVE NALYSIS NI
OPEING - In jS PhIMS-SEVE iNRh3EN son - MILLIMETER
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1TCrii INN20 1 e A- NI deg I FIK 46591 2 a045 4 2 1115 5 2 6
GRIISZ IN MILLIMETERS
COACE iE NtIUM FI SILT AD CLAY SOILSGRAVEL SAND
5r IBSAMPLE DEPTH ELEV LLP1
A Composite 28 10 Crusher Run Average of 229 samples
B Composite 28 11 Surface Course Blend as Placed Average of 58 samples
2050 kgm3 Averaoe Blend Added shy
TIPPETTS-ASETT-NCCARTIY-STATTONREPUBLIC OF BOTSWANA NEW YORK NY
MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS
BRAIN SIZE DISTRIBUTION BY NCZ jAATE9 876BOTSWANA-ZAMBIA
HIGHWAY PIT 14 amp 14A OWN FIGURE B-6
i
S ANALYSIS 01 ANALYSIS
SIEVE - n -IIII- SIZ-MII- - IN i
It a s 1
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GRAVEL nSAND
E--l I UNEASMPLEDEPlTH ELEV LL P1 KWKIPTION
A Composite 36 19 Crusher Run
Average of 116 Samples
B Composite 36 15 Surface Course Blend Average of 138 samples
H GHWA E SA 18 SILT ANDURCLA-SIL
3kgm Los Angeles Abrasion 28
Av agau Pnd AAd = 907 ITI UETT$-ABBTT-NcentcentARTNY-STRATTON
NEW YORK NY
REPUBLIC OF BOTSWANA
MINISTRY OF WORKS amp COM24UNICATIONSIT NINEERS1
I I MGIELI7 I 1 8AIIGIWAE
I
4
SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU
V 1 Oe 001l
- -r--I-I -- I
S E- -IN S
KI zz7llfl$zIIIti z I
low560
20
2
IGRAIN SIZE IN MILLIMETERS
COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS
GRAVEL SAND
SAMP DEPTH ELEV L P1 0NBERIIPTI
A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples
B Composit( 28 13 Surface Course Blend as Placed
Average of 85 samples
Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA
REPUBLIC OF BOTSWANA TI EfTTS-AIETT-NCARTY-STRATTOi ITTqTPI yen O WOVQ A n rn WTraTTn~lz ENGINEERS NEW YOlK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8
-D IUR IB
II SIEVE ANALYIIS 1411 I LYIlMll
[urn $11min - I I ITUSE IVV I - mampINimums1 -l0 n 001
a1 i 4 is s 0 aL w I 2 0665S a a 4 i 0i
-7sl
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I RI IE IN M IEER
CfliEI FIN g o au SIT SILFIN M40 5C o432 14593 ry B6
ver 7 samples
NUMBE NERPI
Ay I GRAIN SIZE IN MILLIMETR
5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND
A Q A- Aii dd d~A
IMUBEIRIIIIPIi
3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables
B Composit 26 13 Surface Course BlendU as Placed
Average of 79 samples
AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =
REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9
SIEVE ANALYSIS IMmv na awLYoia
SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I
I- 01 001
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$05 9 2
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GRAIN SIZE IN MILLIMETERS
1 111I
NU BE GRAVEL
COARSE
I
MEDIUM
I SAND
FSILT AND CLAY SOILS
SAMPLE4 DEP EEY 1 SCBI1PTIORI
A
B
Composite
Composite
38
26
17
13
Crusher Run Basaltic Aggregate
Average of 176 samples
Surface Course Blend -s Placed Average of 58 samples
Average MDD = 2135 kgm Los Angeles Abrasion = 38
Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY
WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971
3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10
SIEVE ANIALYSIS lNVINI1111 ANALYSIS
I EV OPE IN - INI8 TOSIIEENN1-MLII
I
I - - i ii 0
I GRI SIZEto N OILS 1
I ANDLI IS
G VELIZE I
IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL
-APL ESN
DEPTH ELEY LL PI DESCRIPTIONNUSMBE
3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples
B Composite 26 13 Surface Course Blend as Placed Average of 58 samples
Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34
Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY
BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11
___ I
SIEVE ANALYSIS W11 ANKEm SIS
SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS
01 001
sodego
i i
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6 559 2 a65 3 2 1 6532 S
II GRAIN SIZE INMILLIMETERS
=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL
GRAVEL SN
I SAMPE DEPTH ELEV LL P)S DESCRIPTION
A omposite 28 10 Crusher Run
SAverage of 72 samples
B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples
Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20
REPUBLICUINISTRY 0OF OF
BOTSWANA WORKS amp COMMUNIGTIONS
TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12
I
SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM
-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U
I _
I1li
Ia _ Cu ve
N IC A11
IQI II
1 IG S IIIMETE
I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND
SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION
A Composite 34 15 Crusher Run Average of 74 samples
B Composite 29 12 Surface Course Blend as Placed
Average of 42 samples
MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15
REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA
ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N
NEW sy cKA
YORK NYT E-2 5 1 7 7
HIGHWAY PIT 32A Mwe FIGURE B-13
I I I I I I I I
APPENDIX C
I WATER WELL LOCATIONS
I I I I I I I I I
APPENDIX C WATER WELL LOCATIONS
WELL NO 3
Location Km 171 Lt of centerline 200 meters
Drill - 6 x 392
Ream - 8 x 92
Case - 6 x 84
Test - 24 Hours - 276
Pump 6000 G P H
Total depth - 392
Pumped at 150
24 Hr Drawdown - 3
Water Good
WELL NO 4
Location Km 175 - Lt of centerline 100 meters
Drill - 6 x 380
Ream - 8 x 82
Case - 7 x 82
Test - 276
Pump 1800 G P H
Total depth - 380
Pumped at 200
Drawdown 24 Hr - 100
Water Good
WELL NO 5 (Govt No 2436
Location Km 178 - Lt of centerline 115 meters
Test -276
Pump - 1400 G P H
Total depth - 160
Pumped at 140
24 Hr Drawdown - 60
Water Good C-1
WELL NO 6
Location Km 183 - Lt of centerline 60 meters
Drill - 6 x 436
Ream - 8 x 86
Case - 7 x 86
Test - 276
Pump - 500 G P H
Total depth - 436
Pumped at 250
24 Hr Drawdown - 150
Water Good
WELL NO 7 - (Govt No 2435)
Location Km 189 - Rt of centerline 100 meters
Clean amp Test
Pump - 6000 G P H
Pumped at 140
24 Hr Drawdown - 10
Water Good
WELL NO 14
Location Km 252 - Lt of centerline 100 meters
Drill - 6 x 250
Ream - 8 x 53
Case - 6 x 53
Test - 276
Pump - 6000 G P H
Total depth - 250
Pumped at 150
24 Hr Drawdown - 6
Water Good
C-2
WELL AT KM 256 MAINTENANCE FACILITY NO 3
Location Km 256 - Lt of centerline 200 meters
Depth - 100 feet
Water Rest Level - 42 feet
Depth Pump Set - 70 feet
24 Hr Test - 1800 G P H
WELL NO 15
Location Km 245 - Rt of centerline 40 meters
Drill - 6 x 260
Ream - 8 x 54
Case - 54
Test -276
Pump - 1500 G P H
Total depth - 260
Pumped at 200
24 Hr Drawdown - 140
Water Good
WELL NO 16 Location Km 236 -Rt of centerline 30 meters
Drill - 6 x 250
Ream - 8 x 22
Case - 6 x 22
Test - 276
Pump -6000 G P H
Total depth - 288
Pumped at 150
24 Hr Drawdown - 10
Water Good
C-3
WELL NO 17
Location Km 224 - Rt of centerline 30 meters
Drill - 10 x 89
Case - 8 x 85
Drill- 8x 43
Drill - 6 x 38
Case -6 x 132
Test - 276
Pump -2000 G P H
Total Depth - 170
Pumped at 100
24 Hr Drawdown - 11
Water Good
WELL NO 18
Location Km 217 - Lt of centerline 200 meters
Drill -i0 x 70
Case - 7 x 70
Drill - 7 x 52
Drill - 6 x 88
Case - 6 x 122
Test - 276
Pump 2400 G P H
Total depth - 210
Pumped at 200
24 Hr Drawdown - 140
Water Good
C-4
WELL NO 19
Location Km 213 - Lt of centerline 100 meters
Drill - 10 x 44
Case - 8 x 40
Drill - 8 x 76
Drill 6 x 130
Case - 6 x 120
Test - 276
Pump - 6000 G P H
Total depth - 210
Pumped at 60
24 Hr Drawdown - 10
Water Good
WELL NO 20
Location Km 143 - Rt of centerline 100 meters
Drill - 10 x 240
Case - 7 x 220
Drill -6 x 378
Case - 6 x 240
Case - 5 x 240
Test - 276
Pump -1500 G P H
Total depth - 618
Pumped at 460
24 Hr Drawdown - 105
Water slightly salty to taste but drinkable
C-5
WELL NO 23
Location Km 139 - Lt of centerline 100 meters
Drill - 12 x 290
Place amp Extract Case - 10 x 290
Drill - 8 x 30
Drill - 6 x 40
Case - 8 x 290
Case - 6 x 320
Test - 276
Pump - 1200 G P H
Total depth - 360
Pumped at 330
24 Hr Drawdown - 120
Water salty
WELL NO 24
Location Km 135 - Lt of centerline 500 meters
Drill - 12 x 270
Drill - 10 x 10
Case - 10 x 270
Drill -8 x 30
Case - 8 x 290
Case -6 x 310
Case - 5 x 320
Test -276
Pump -4000 +G P H
Total depth - 320
Pumped at 270
24 Hr Drawdown - 2
Water Salty
C-6
I
5
WELL KM 205 MAINTENANCE FACILITY NO 2
Location Km 105 - Lt of centerline 40 meters
Depth - 302 feet
~ Water Rest Level - 82 feet
Depth Pump Set - 150 feet
48 Hr Test - 3000 + G P H
WELL NO 26
Location Km 82 - Lt of centerline 100 meters
Drill - 12 x 145
5 -8 x145
Drill - 8 x 23
-Case
I Drill - 7 x 10
Case - 7 x 168
I Case - 6 x178
Test - 276
Pump - 1200 G P H
Total depth - 306
I Pumped at 140
24 Hr Drawdown - 35
I Water Good
C
I 0-7
WELL NO 27
Location Km 77 - Lt of centerline 100 meters
Drill - 12 x 174
Install amp Extract Case - 10 x 174
Case - 8 x 174
Drill - 9 x 68
Drill - 8 x 64
Case - 7 x 242
Case - 6 x 306
Test - 276
Pump - 4000 + G P H
Total Depth - 306
Pumpe at 240
24 Hr Drawdown - 0
Water Good
WELL NO 28- (Govt No 2465)
Location Km 63 - Rt of centerline 100 meters
Clean amp Extract Case - 300
Ream - 10 x 98
Ream - 8x 27
Ream - 6 x 12
Case - 8 x 98
Case - 6 x 125
Test - 276
Pump - 1000 + G P H
Total depth - 137
Pumped at 130
24 Hr Drawdown - 33
Water Good
C-8
WELL NO 30
Location Km 47 - Rt of centerline 400 meters
Drill - 12 x 132
Case - 10 x 89
Install amp Extract Case - 12 x 43
Drill - 10 x 117
Case - 7 x 242
Drill - 6 x 183
Install amp Extract Case - 6 x 408
Test - 276
Pump - 1000 G P H
Total depth - 408
Pumped at 160
24 Hr Drawdown - 77
Water Salty
WELL NO 31
- Lt of centerline 200 metersLocation Km 44
Drill - 12 x 110
Case - 10 x 100
Drill - 10 x 142
Case 8 x 142
Drill - 8 x 250
Case 7 x 392
Drill - 6 x 78
Test - 276
Pump - 3000 G P H
Total depth - 502
Pumped at 160
24 Hr Drawdown - 44
Water Salty
C-9
WELL NO 32
Location Km 42 - Lt of centerline 100 meters
Drill - 12 x 108
Case - 10 x 108
Drill - 10 x 212
Drill - 8 x 120
Case - 6 x 340
Case - 8 x 182
Test - 276
Pump - 3000 + G P H
Total depth - 448
Pumped at 160
24 Hr Drawdown - 20
Water Salty
WELL NO 34
Location Km 35 - Lt of centerline 200 meters
Drill - 12 x 230
Install amp Extract Case - 10 x 230
Drill - 8 x 30
Case -6 x 260
Drill - 6 x 160
Case -5 x 324
Case - 8 x 20
Test - 276
Pump -1000 + G P H
Total depth - 420
Pumped at 150
24 Hr Drawdown - 100
Water Salty
C-10
WELL NO 36
Location Km 7 N E along old track from Km 63
Drill - 12 x 180
Case - 10 x 180
Drill - 10 x 231
Case - 8 x 211
Drill- 8x 254
Case - 6 x 245
Test -276
Pump -4000 + G P H
Total depth - 265
Pumped at 180
24 Hr Drawdown - 0
Water Good
C-11
I 3 I 1 I I I I B j APPENDDC D
SYNOPSIS 0 KEY CORRESPONDENCE
3 DURING CONSTRUCTION
I pound I I I 1 I I
On September 1 1973 the Contractor confirmed the
estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts
On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project
On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be
obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated
On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine
On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation
On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension
On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension
On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval
On October 15 1973 the Engineer returned the construction progress schedule for correction
On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim
D-I
On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor
On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project
On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25
On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter
On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents
On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract
On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised
On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading
On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule
On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request
On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period
D-2
On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report
On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material
On August 19 1974 the Contractor submitted an updated construction progress schedule for approval
On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases
On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor
On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor
On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project
On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course
On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country
On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course
On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions
On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule
On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress
D-3
On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract
On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana
On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor
On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion
On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations
On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases
On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season
On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees
On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections
On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project
On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course
On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project
On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract
D-4
October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request
On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor
On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620
On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project
On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y
completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense
On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted
On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project
On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim
On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic
On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor
On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976
D-5
On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time
On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares
On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material
On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500
On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor
On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula
On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana
OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected
On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road
On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road
Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10
On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued
On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced
On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091
On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091
Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued
D-6
I I IUUU U U UU I U
E PROJECT PHOTOGRAPHS
I IIIU U I
I Crushing Plants Surface Course
Pit 2A
Pug Mill Blending Surface Course
Pit 25A
II Surface Course
Pit 25A
UURYPTOERTOSE Pug Mil Blending
Road Reserve Bush Clearing
Km 242
U
Embankment Construction Km 287
IN
Road Construction Water Supply
Km 189
ROADWAY UNDER CONSTRUTION
II
E-2
Stockpiling Material Base Course
Special Embankment Construction Km 232
Watering of Embankment Km 257
ROADWAY UNDER CONSTRUCTION E-3
Culvert Assembly
Twin Culvert with Sand-Cement Pitching
Multiple Culverts with Sand-Cement Pitching
CULVERT INSTALLATIONS E- 4
AT Km 25
AT Km 194
Emergency Landing Strip Kra 2605
FINISHED ROADWAY E- 5
AT Km 286
AT Chobe By-Pass Junction Km 297
I Chobe By-Pass Road Near Ngoma Bridge
E-6FINISHED ROADWAY
3 SIEVE ANALYSIS SMI~ia VIII
IY UN In~ VI STAISRS SIEVE NUMBfh SUE9 - usuLguNuus O-- aoIiUl- I1
11I a to to 0 i oIIIa lf I
II
SN Cu ye B
II N
o
i B _ ___~ N II 1 l s - Curi e At-
I 2 I a 6 4 2 i5 4 3 2 a -
GRAIN I IZE MILTERS
SILT AND CLAY SOILS GRAVEL SAND
I NUMBE1RSAMPLE DEPTH LL KIE IPTIONIELEV P1 ECIT
A Composit 38 19 CrusherAverage Runof 192 samples
B Composit 33 17 Surface Course Blend asAverage of 236 samples placed
MDD 1960 kgm Los Angeles Abrasion = 42 Average Blend Added 15=
REPUBLIC OF BOTSWANA TI PPETTS-ASSETT-NcCAIThY-STRATTOU MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY BOTSWANA-ZAMBIA GRAIN SIZE DISTRIBUTION BY DmArTE Q76HIGHWAY j PIT 2A DOi FIGURE B-5
E ANLYSISSIEVE NALYSIS NI
OPEING - In jS PhIMS-SEVE iNRh3EN son - MILLIMETER
V11 6plusmn SSIEVE
6 i S 0-4 0 10 miUS) 3055 3 001mesa a
9 I I I - -
Crye B
S bull
1TCrii INN20 1 e A- NI deg I FIK 46591 2 a045 4 2 1115 5 2 6
GRIISZ IN MILLIMETERS
COACE iE NtIUM FI SILT AD CLAY SOILSGRAVEL SAND
5r IBSAMPLE DEPTH ELEV LLP1
A Composite 28 10 Crusher Run Average of 229 samples
B Composite 28 11 Surface Course Blend as Placed Average of 58 samples
2050 kgm3 Averaoe Blend Added shy
TIPPETTS-ASETT-NCCARTIY-STATTONREPUBLIC OF BOTSWANA NEW YORK NY
MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS
BRAIN SIZE DISTRIBUTION BY NCZ jAATE9 876BOTSWANA-ZAMBIA
HIGHWAY PIT 14 amp 14A OWN FIGURE B-6
i
S ANALYSIS 01 ANALYSIS
SIEVE - n -IIII- SIZ-MII- - IN i
It a s 1
Ue a -- e B
- 1 -I-[_I - I I I
6l51 10 8 $514 1 O is 05I I 21 8GANSZNILMTR OA RE Filo 9OA-1i 1DI UM F log S ILT AND CLAY SO ILS
GRAVEL nSAND
E--l I UNEASMPLEDEPlTH ELEV LL P1 KWKIPTION
A Composite 36 19 Crusher Run
Average of 116 Samples
B Composite 36 15 Surface Course Blend Average of 138 samples
H GHWA E SA 18 SILT ANDURCLA-SIL
3kgm Los Angeles Abrasion 28
Av agau Pnd AAd = 907 ITI UETT$-ABBTT-NcentcentARTNY-STRATTON
NEW YORK NY
REPUBLIC OF BOTSWANA
MINISTRY OF WORKS amp COM24UNICATIONSIT NINEERS1
I I MGIELI7 I 1 8AIIGIWAE
I
4
SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU
V 1 Oe 001l
- -r--I-I -- I
S E- -IN S
KI zz7llfl$zIIIti z I
low560
20
2
IGRAIN SIZE IN MILLIMETERS
COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS
GRAVEL SAND
SAMP DEPTH ELEV L P1 0NBERIIPTI
A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples
B Composit( 28 13 Surface Course Blend as Placed
Average of 85 samples
Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA
REPUBLIC OF BOTSWANA TI EfTTS-AIETT-NCARTY-STRATTOi ITTqTPI yen O WOVQ A n rn WTraTTn~lz ENGINEERS NEW YOlK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8
-D IUR IB
II SIEVE ANALYIIS 1411 I LYIlMll
[urn $11min - I I ITUSE IVV I - mampINimums1 -l0 n 001
a1 i 4 is s 0 aL w I 2 0665S a a 4 i 0i
-7sl
96---
I RI IE IN M IEER
CfliEI FIN g o au SIT SILFIN M40 5C o432 14593 ry B6
ver 7 samples
NUMBE NERPI
Ay I GRAIN SIZE IN MILLIMETR
5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND
A Q A- Aii dd d~A
IMUBEIRIIIIPIi
3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables
B Composit 26 13 Surface Course BlendU as Placed
Average of 79 samples
AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =
REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9
SIEVE ANALYSIS IMmv na awLYoia
SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I
I- 01 001
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Ir1 -NIP_]
20
OA
$05 9 2
E
I
86543
I
7tN
2 1 65
_OAlEED t
5 2
FN
I
GRAIN SIZE IN MILLIMETERS
1 111I
NU BE GRAVEL
COARSE
I
MEDIUM
I SAND
FSILT AND CLAY SOILS
SAMPLE4 DEP EEY 1 SCBI1PTIORI
A
B
Composite
Composite
38
26
17
13
Crusher Run Basaltic Aggregate
Average of 176 samples
Surface Course Blend -s Placed Average of 58 samples
Average MDD = 2135 kgm Los Angeles Abrasion = 38
Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY
WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971
3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10
SIEVE ANIALYSIS lNVINI1111 ANALYSIS
I EV OPE IN - INI8 TOSIIEENN1-MLII
I
I - - i ii 0
I GRI SIZEto N OILS 1
I ANDLI IS
G VELIZE I
IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL
-APL ESN
DEPTH ELEY LL PI DESCRIPTIONNUSMBE
3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples
B Composite 26 13 Surface Course Blend as Placed Average of 58 samples
Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34
Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY
BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11
___ I
SIEVE ANALYSIS W11 ANKEm SIS
SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS
01 001
sodego
i i
U Ae
6 559 2 a65 3 2 1 6532 S
II GRAIN SIZE INMILLIMETERS
=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL
GRAVEL SN
I SAMPE DEPTH ELEV LL P)S DESCRIPTION
A omposite 28 10 Crusher Run
SAverage of 72 samples
B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples
Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20
REPUBLICUINISTRY 0OF OF
BOTSWANA WORKS amp COMMUNIGTIONS
TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12
I
SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM
-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U
I _
I1li
Ia _ Cu ve
N IC A11
IQI II
1 IG S IIIMETE
I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND
SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION
A Composite 34 15 Crusher Run Average of 74 samples
B Composite 29 12 Surface Course Blend as Placed
Average of 42 samples
MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15
REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA
ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N
NEW sy cKA
YORK NYT E-2 5 1 7 7
HIGHWAY PIT 32A Mwe FIGURE B-13
I I I I I I I I
APPENDIX C
I WATER WELL LOCATIONS
I I I I I I I I I
APPENDIX C WATER WELL LOCATIONS
WELL NO 3
Location Km 171 Lt of centerline 200 meters
Drill - 6 x 392
Ream - 8 x 92
Case - 6 x 84
Test - 24 Hours - 276
Pump 6000 G P H
Total depth - 392
Pumped at 150
24 Hr Drawdown - 3
Water Good
WELL NO 4
Location Km 175 - Lt of centerline 100 meters
Drill - 6 x 380
Ream - 8 x 82
Case - 7 x 82
Test - 276
Pump 1800 G P H
Total depth - 380
Pumped at 200
Drawdown 24 Hr - 100
Water Good
WELL NO 5 (Govt No 2436
Location Km 178 - Lt of centerline 115 meters
Test -276
Pump - 1400 G P H
Total depth - 160
Pumped at 140
24 Hr Drawdown - 60
Water Good C-1
WELL NO 6
Location Km 183 - Lt of centerline 60 meters
Drill - 6 x 436
Ream - 8 x 86
Case - 7 x 86
Test - 276
Pump - 500 G P H
Total depth - 436
Pumped at 250
24 Hr Drawdown - 150
Water Good
WELL NO 7 - (Govt No 2435)
Location Km 189 - Rt of centerline 100 meters
Clean amp Test
Pump - 6000 G P H
Pumped at 140
24 Hr Drawdown - 10
Water Good
WELL NO 14
Location Km 252 - Lt of centerline 100 meters
Drill - 6 x 250
Ream - 8 x 53
Case - 6 x 53
Test - 276
Pump - 6000 G P H
Total depth - 250
Pumped at 150
24 Hr Drawdown - 6
Water Good
C-2
WELL AT KM 256 MAINTENANCE FACILITY NO 3
Location Km 256 - Lt of centerline 200 meters
Depth - 100 feet
Water Rest Level - 42 feet
Depth Pump Set - 70 feet
24 Hr Test - 1800 G P H
WELL NO 15
Location Km 245 - Rt of centerline 40 meters
Drill - 6 x 260
Ream - 8 x 54
Case - 54
Test -276
Pump - 1500 G P H
Total depth - 260
Pumped at 200
24 Hr Drawdown - 140
Water Good
WELL NO 16 Location Km 236 -Rt of centerline 30 meters
Drill - 6 x 250
Ream - 8 x 22
Case - 6 x 22
Test - 276
Pump -6000 G P H
Total depth - 288
Pumped at 150
24 Hr Drawdown - 10
Water Good
C-3
WELL NO 17
Location Km 224 - Rt of centerline 30 meters
Drill - 10 x 89
Case - 8 x 85
Drill- 8x 43
Drill - 6 x 38
Case -6 x 132
Test - 276
Pump -2000 G P H
Total Depth - 170
Pumped at 100
24 Hr Drawdown - 11
Water Good
WELL NO 18
Location Km 217 - Lt of centerline 200 meters
Drill -i0 x 70
Case - 7 x 70
Drill - 7 x 52
Drill - 6 x 88
Case - 6 x 122
Test - 276
Pump 2400 G P H
Total depth - 210
Pumped at 200
24 Hr Drawdown - 140
Water Good
C-4
WELL NO 19
Location Km 213 - Lt of centerline 100 meters
Drill - 10 x 44
Case - 8 x 40
Drill - 8 x 76
Drill 6 x 130
Case - 6 x 120
Test - 276
Pump - 6000 G P H
Total depth - 210
Pumped at 60
24 Hr Drawdown - 10
Water Good
WELL NO 20
Location Km 143 - Rt of centerline 100 meters
Drill - 10 x 240
Case - 7 x 220
Drill -6 x 378
Case - 6 x 240
Case - 5 x 240
Test - 276
Pump -1500 G P H
Total depth - 618
Pumped at 460
24 Hr Drawdown - 105
Water slightly salty to taste but drinkable
C-5
WELL NO 23
Location Km 139 - Lt of centerline 100 meters
Drill - 12 x 290
Place amp Extract Case - 10 x 290
Drill - 8 x 30
Drill - 6 x 40
Case - 8 x 290
Case - 6 x 320
Test - 276
Pump - 1200 G P H
Total depth - 360
Pumped at 330
24 Hr Drawdown - 120
Water salty
WELL NO 24
Location Km 135 - Lt of centerline 500 meters
Drill - 12 x 270
Drill - 10 x 10
Case - 10 x 270
Drill -8 x 30
Case - 8 x 290
Case -6 x 310
Case - 5 x 320
Test -276
Pump -4000 +G P H
Total depth - 320
Pumped at 270
24 Hr Drawdown - 2
Water Salty
C-6
I
5
WELL KM 205 MAINTENANCE FACILITY NO 2
Location Km 105 - Lt of centerline 40 meters
Depth - 302 feet
~ Water Rest Level - 82 feet
Depth Pump Set - 150 feet
48 Hr Test - 3000 + G P H
WELL NO 26
Location Km 82 - Lt of centerline 100 meters
Drill - 12 x 145
5 -8 x145
Drill - 8 x 23
-Case
I Drill - 7 x 10
Case - 7 x 168
I Case - 6 x178
Test - 276
Pump - 1200 G P H
Total depth - 306
I Pumped at 140
24 Hr Drawdown - 35
I Water Good
C
I 0-7
WELL NO 27
Location Km 77 - Lt of centerline 100 meters
Drill - 12 x 174
Install amp Extract Case - 10 x 174
Case - 8 x 174
Drill - 9 x 68
Drill - 8 x 64
Case - 7 x 242
Case - 6 x 306
Test - 276
Pump - 4000 + G P H
Total Depth - 306
Pumpe at 240
24 Hr Drawdown - 0
Water Good
WELL NO 28- (Govt No 2465)
Location Km 63 - Rt of centerline 100 meters
Clean amp Extract Case - 300
Ream - 10 x 98
Ream - 8x 27
Ream - 6 x 12
Case - 8 x 98
Case - 6 x 125
Test - 276
Pump - 1000 + G P H
Total depth - 137
Pumped at 130
24 Hr Drawdown - 33
Water Good
C-8
WELL NO 30
Location Km 47 - Rt of centerline 400 meters
Drill - 12 x 132
Case - 10 x 89
Install amp Extract Case - 12 x 43
Drill - 10 x 117
Case - 7 x 242
Drill - 6 x 183
Install amp Extract Case - 6 x 408
Test - 276
Pump - 1000 G P H
Total depth - 408
Pumped at 160
24 Hr Drawdown - 77
Water Salty
WELL NO 31
- Lt of centerline 200 metersLocation Km 44
Drill - 12 x 110
Case - 10 x 100
Drill - 10 x 142
Case 8 x 142
Drill - 8 x 250
Case 7 x 392
Drill - 6 x 78
Test - 276
Pump - 3000 G P H
Total depth - 502
Pumped at 160
24 Hr Drawdown - 44
Water Salty
C-9
WELL NO 32
Location Km 42 - Lt of centerline 100 meters
Drill - 12 x 108
Case - 10 x 108
Drill - 10 x 212
Drill - 8 x 120
Case - 6 x 340
Case - 8 x 182
Test - 276
Pump - 3000 + G P H
Total depth - 448
Pumped at 160
24 Hr Drawdown - 20
Water Salty
WELL NO 34
Location Km 35 - Lt of centerline 200 meters
Drill - 12 x 230
Install amp Extract Case - 10 x 230
Drill - 8 x 30
Case -6 x 260
Drill - 6 x 160
Case -5 x 324
Case - 8 x 20
Test - 276
Pump -1000 + G P H
Total depth - 420
Pumped at 150
24 Hr Drawdown - 100
Water Salty
C-10
WELL NO 36
Location Km 7 N E along old track from Km 63
Drill - 12 x 180
Case - 10 x 180
Drill - 10 x 231
Case - 8 x 211
Drill- 8x 254
Case - 6 x 245
Test -276
Pump -4000 + G P H
Total depth - 265
Pumped at 180
24 Hr Drawdown - 0
Water Good
C-11
I 3 I 1 I I I I B j APPENDDC D
SYNOPSIS 0 KEY CORRESPONDENCE
3 DURING CONSTRUCTION
I pound I I I 1 I I
On September 1 1973 the Contractor confirmed the
estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts
On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project
On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be
obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated
On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine
On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation
On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension
On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension
On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval
On October 15 1973 the Engineer returned the construction progress schedule for correction
On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim
D-I
On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor
On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project
On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25
On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter
On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents
On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract
On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised
On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading
On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule
On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request
On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period
D-2
On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report
On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material
On August 19 1974 the Contractor submitted an updated construction progress schedule for approval
On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases
On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor
On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor
On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project
On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course
On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country
On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course
On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions
On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule
On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress
D-3
On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract
On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana
On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor
On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion
On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations
On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases
On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season
On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees
On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections
On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project
On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course
On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project
On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract
D-4
October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request
On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor
On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620
On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project
On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y
completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense
On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted
On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project
On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim
On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic
On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor
On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976
D-5
On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time
On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares
On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material
On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500
On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor
On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula
On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana
OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected
On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road
On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road
Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10
On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued
On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced
On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091
On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091
Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued
D-6
I I IUUU U U UU I U
E PROJECT PHOTOGRAPHS
I IIIU U I
I Crushing Plants Surface Course
Pit 2A
Pug Mill Blending Surface Course
Pit 25A
II Surface Course
Pit 25A
UURYPTOERTOSE Pug Mil Blending
Road Reserve Bush Clearing
Km 242
U
Embankment Construction Km 287
IN
Road Construction Water Supply
Km 189
ROADWAY UNDER CONSTRUTION
II
E-2
Stockpiling Material Base Course
Special Embankment Construction Km 232
Watering of Embankment Km 257
ROADWAY UNDER CONSTRUCTION E-3
Culvert Assembly
Twin Culvert with Sand-Cement Pitching
Multiple Culverts with Sand-Cement Pitching
CULVERT INSTALLATIONS E- 4
AT Km 25
AT Km 194
Emergency Landing Strip Kra 2605
FINISHED ROADWAY E- 5
AT Km 286
AT Chobe By-Pass Junction Km 297
I Chobe By-Pass Road Near Ngoma Bridge
E-6FINISHED ROADWAY
E ANLYSISSIEVE NALYSIS NI
OPEING - In jS PhIMS-SEVE iNRh3EN son - MILLIMETER
V11 6plusmn SSIEVE
6 i S 0-4 0 10 miUS) 3055 3 001mesa a
9 I I I - -
Crye B
S bull
1TCrii INN20 1 e A- NI deg I FIK 46591 2 a045 4 2 1115 5 2 6
GRIISZ IN MILLIMETERS
COACE iE NtIUM FI SILT AD CLAY SOILSGRAVEL SAND
5r IBSAMPLE DEPTH ELEV LLP1
A Composite 28 10 Crusher Run Average of 229 samples
B Composite 28 11 Surface Course Blend as Placed Average of 58 samples
2050 kgm3 Averaoe Blend Added shy
TIPPETTS-ASETT-NCCARTIY-STATTONREPUBLIC OF BOTSWANA NEW YORK NY
MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS
BRAIN SIZE DISTRIBUTION BY NCZ jAATE9 876BOTSWANA-ZAMBIA
HIGHWAY PIT 14 amp 14A OWN FIGURE B-6
i
S ANALYSIS 01 ANALYSIS
SIEVE - n -IIII- SIZ-MII- - IN i
It a s 1
Ue a -- e B
- 1 -I-[_I - I I I
6l51 10 8 $514 1 O is 05I I 21 8GANSZNILMTR OA RE Filo 9OA-1i 1DI UM F log S ILT AND CLAY SO ILS
GRAVEL nSAND
E--l I UNEASMPLEDEPlTH ELEV LL P1 KWKIPTION
A Composite 36 19 Crusher Run
Average of 116 Samples
B Composite 36 15 Surface Course Blend Average of 138 samples
H GHWA E SA 18 SILT ANDURCLA-SIL
3kgm Los Angeles Abrasion 28
Av agau Pnd AAd = 907 ITI UETT$-ABBTT-NcentcentARTNY-STRATTON
NEW YORK NY
REPUBLIC OF BOTSWANA
MINISTRY OF WORKS amp COM24UNICATIONSIT NINEERS1
I I MGIELI7 I 1 8AIIGIWAE
I
4
SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU
V 1 Oe 001l
- -r--I-I -- I
S E- -IN S
KI zz7llfl$zIIIti z I
low560
20
2
IGRAIN SIZE IN MILLIMETERS
COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS
GRAVEL SAND
SAMP DEPTH ELEV L P1 0NBERIIPTI
A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples
B Composit( 28 13 Surface Course Blend as Placed
Average of 85 samples
Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA
REPUBLIC OF BOTSWANA TI EfTTS-AIETT-NCARTY-STRATTOi ITTqTPI yen O WOVQ A n rn WTraTTn~lz ENGINEERS NEW YOlK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8
-D IUR IB
II SIEVE ANALYIIS 1411 I LYIlMll
[urn $11min - I I ITUSE IVV I - mampINimums1 -l0 n 001
a1 i 4 is s 0 aL w I 2 0665S a a 4 i 0i
-7sl
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I RI IE IN M IEER
CfliEI FIN g o au SIT SILFIN M40 5C o432 14593 ry B6
ver 7 samples
NUMBE NERPI
Ay I GRAIN SIZE IN MILLIMETR
5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND
A Q A- Aii dd d~A
IMUBEIRIIIIPIi
3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables
B Composit 26 13 Surface Course BlendU as Placed
Average of 79 samples
AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =
REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9
SIEVE ANALYSIS IMmv na awLYoia
SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I
I- 01 001
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$05 9 2
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86543
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GRAIN SIZE IN MILLIMETERS
1 111I
NU BE GRAVEL
COARSE
I
MEDIUM
I SAND
FSILT AND CLAY SOILS
SAMPLE4 DEP EEY 1 SCBI1PTIORI
A
B
Composite
Composite
38
26
17
13
Crusher Run Basaltic Aggregate
Average of 176 samples
Surface Course Blend -s Placed Average of 58 samples
Average MDD = 2135 kgm Los Angeles Abrasion = 38
Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY
WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971
3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10
SIEVE ANIALYSIS lNVINI1111 ANALYSIS
I EV OPE IN - INI8 TOSIIEENN1-MLII
I
I - - i ii 0
I GRI SIZEto N OILS 1
I ANDLI IS
G VELIZE I
IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL
-APL ESN
DEPTH ELEY LL PI DESCRIPTIONNUSMBE
3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples
B Composite 26 13 Surface Course Blend as Placed Average of 58 samples
Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34
Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY
BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11
___ I
SIEVE ANALYSIS W11 ANKEm SIS
SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS
01 001
sodego
i i
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6 559 2 a65 3 2 1 6532 S
II GRAIN SIZE INMILLIMETERS
=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL
GRAVEL SN
I SAMPE DEPTH ELEV LL P)S DESCRIPTION
A omposite 28 10 Crusher Run
SAverage of 72 samples
B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples
Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20
REPUBLICUINISTRY 0OF OF
BOTSWANA WORKS amp COMMUNIGTIONS
TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12
I
SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM
-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U
I _
I1li
Ia _ Cu ve
N IC A11
IQI II
1 IG S IIIMETE
I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND
SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION
A Composite 34 15 Crusher Run Average of 74 samples
B Composite 29 12 Surface Course Blend as Placed
Average of 42 samples
MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15
REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA
ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N
NEW sy cKA
YORK NYT E-2 5 1 7 7
HIGHWAY PIT 32A Mwe FIGURE B-13
I I I I I I I I
APPENDIX C
I WATER WELL LOCATIONS
I I I I I I I I I
APPENDIX C WATER WELL LOCATIONS
WELL NO 3
Location Km 171 Lt of centerline 200 meters
Drill - 6 x 392
Ream - 8 x 92
Case - 6 x 84
Test - 24 Hours - 276
Pump 6000 G P H
Total depth - 392
Pumped at 150
24 Hr Drawdown - 3
Water Good
WELL NO 4
Location Km 175 - Lt of centerline 100 meters
Drill - 6 x 380
Ream - 8 x 82
Case - 7 x 82
Test - 276
Pump 1800 G P H
Total depth - 380
Pumped at 200
Drawdown 24 Hr - 100
Water Good
WELL NO 5 (Govt No 2436
Location Km 178 - Lt of centerline 115 meters
Test -276
Pump - 1400 G P H
Total depth - 160
Pumped at 140
24 Hr Drawdown - 60
Water Good C-1
WELL NO 6
Location Km 183 - Lt of centerline 60 meters
Drill - 6 x 436
Ream - 8 x 86
Case - 7 x 86
Test - 276
Pump - 500 G P H
Total depth - 436
Pumped at 250
24 Hr Drawdown - 150
Water Good
WELL NO 7 - (Govt No 2435)
Location Km 189 - Rt of centerline 100 meters
Clean amp Test
Pump - 6000 G P H
Pumped at 140
24 Hr Drawdown - 10
Water Good
WELL NO 14
Location Km 252 - Lt of centerline 100 meters
Drill - 6 x 250
Ream - 8 x 53
Case - 6 x 53
Test - 276
Pump - 6000 G P H
Total depth - 250
Pumped at 150
24 Hr Drawdown - 6
Water Good
C-2
WELL AT KM 256 MAINTENANCE FACILITY NO 3
Location Km 256 - Lt of centerline 200 meters
Depth - 100 feet
Water Rest Level - 42 feet
Depth Pump Set - 70 feet
24 Hr Test - 1800 G P H
WELL NO 15
Location Km 245 - Rt of centerline 40 meters
Drill - 6 x 260
Ream - 8 x 54
Case - 54
Test -276
Pump - 1500 G P H
Total depth - 260
Pumped at 200
24 Hr Drawdown - 140
Water Good
WELL NO 16 Location Km 236 -Rt of centerline 30 meters
Drill - 6 x 250
Ream - 8 x 22
Case - 6 x 22
Test - 276
Pump -6000 G P H
Total depth - 288
Pumped at 150
24 Hr Drawdown - 10
Water Good
C-3
WELL NO 17
Location Km 224 - Rt of centerline 30 meters
Drill - 10 x 89
Case - 8 x 85
Drill- 8x 43
Drill - 6 x 38
Case -6 x 132
Test - 276
Pump -2000 G P H
Total Depth - 170
Pumped at 100
24 Hr Drawdown - 11
Water Good
WELL NO 18
Location Km 217 - Lt of centerline 200 meters
Drill -i0 x 70
Case - 7 x 70
Drill - 7 x 52
Drill - 6 x 88
Case - 6 x 122
Test - 276
Pump 2400 G P H
Total depth - 210
Pumped at 200
24 Hr Drawdown - 140
Water Good
C-4
WELL NO 19
Location Km 213 - Lt of centerline 100 meters
Drill - 10 x 44
Case - 8 x 40
Drill - 8 x 76
Drill 6 x 130
Case - 6 x 120
Test - 276
Pump - 6000 G P H
Total depth - 210
Pumped at 60
24 Hr Drawdown - 10
Water Good
WELL NO 20
Location Km 143 - Rt of centerline 100 meters
Drill - 10 x 240
Case - 7 x 220
Drill -6 x 378
Case - 6 x 240
Case - 5 x 240
Test - 276
Pump -1500 G P H
Total depth - 618
Pumped at 460
24 Hr Drawdown - 105
Water slightly salty to taste but drinkable
C-5
WELL NO 23
Location Km 139 - Lt of centerline 100 meters
Drill - 12 x 290
Place amp Extract Case - 10 x 290
Drill - 8 x 30
Drill - 6 x 40
Case - 8 x 290
Case - 6 x 320
Test - 276
Pump - 1200 G P H
Total depth - 360
Pumped at 330
24 Hr Drawdown - 120
Water salty
WELL NO 24
Location Km 135 - Lt of centerline 500 meters
Drill - 12 x 270
Drill - 10 x 10
Case - 10 x 270
Drill -8 x 30
Case - 8 x 290
Case -6 x 310
Case - 5 x 320
Test -276
Pump -4000 +G P H
Total depth - 320
Pumped at 270
24 Hr Drawdown - 2
Water Salty
C-6
I
5
WELL KM 205 MAINTENANCE FACILITY NO 2
Location Km 105 - Lt of centerline 40 meters
Depth - 302 feet
~ Water Rest Level - 82 feet
Depth Pump Set - 150 feet
48 Hr Test - 3000 + G P H
WELL NO 26
Location Km 82 - Lt of centerline 100 meters
Drill - 12 x 145
5 -8 x145
Drill - 8 x 23
-Case
I Drill - 7 x 10
Case - 7 x 168
I Case - 6 x178
Test - 276
Pump - 1200 G P H
Total depth - 306
I Pumped at 140
24 Hr Drawdown - 35
I Water Good
C
I 0-7
WELL NO 27
Location Km 77 - Lt of centerline 100 meters
Drill - 12 x 174
Install amp Extract Case - 10 x 174
Case - 8 x 174
Drill - 9 x 68
Drill - 8 x 64
Case - 7 x 242
Case - 6 x 306
Test - 276
Pump - 4000 + G P H
Total Depth - 306
Pumpe at 240
24 Hr Drawdown - 0
Water Good
WELL NO 28- (Govt No 2465)
Location Km 63 - Rt of centerline 100 meters
Clean amp Extract Case - 300
Ream - 10 x 98
Ream - 8x 27
Ream - 6 x 12
Case - 8 x 98
Case - 6 x 125
Test - 276
Pump - 1000 + G P H
Total depth - 137
Pumped at 130
24 Hr Drawdown - 33
Water Good
C-8
WELL NO 30
Location Km 47 - Rt of centerline 400 meters
Drill - 12 x 132
Case - 10 x 89
Install amp Extract Case - 12 x 43
Drill - 10 x 117
Case - 7 x 242
Drill - 6 x 183
Install amp Extract Case - 6 x 408
Test - 276
Pump - 1000 G P H
Total depth - 408
Pumped at 160
24 Hr Drawdown - 77
Water Salty
WELL NO 31
- Lt of centerline 200 metersLocation Km 44
Drill - 12 x 110
Case - 10 x 100
Drill - 10 x 142
Case 8 x 142
Drill - 8 x 250
Case 7 x 392
Drill - 6 x 78
Test - 276
Pump - 3000 G P H
Total depth - 502
Pumped at 160
24 Hr Drawdown - 44
Water Salty
C-9
WELL NO 32
Location Km 42 - Lt of centerline 100 meters
Drill - 12 x 108
Case - 10 x 108
Drill - 10 x 212
Drill - 8 x 120
Case - 6 x 340
Case - 8 x 182
Test - 276
Pump - 3000 + G P H
Total depth - 448
Pumped at 160
24 Hr Drawdown - 20
Water Salty
WELL NO 34
Location Km 35 - Lt of centerline 200 meters
Drill - 12 x 230
Install amp Extract Case - 10 x 230
Drill - 8 x 30
Case -6 x 260
Drill - 6 x 160
Case -5 x 324
Case - 8 x 20
Test - 276
Pump -1000 + G P H
Total depth - 420
Pumped at 150
24 Hr Drawdown - 100
Water Salty
C-10
WELL NO 36
Location Km 7 N E along old track from Km 63
Drill - 12 x 180
Case - 10 x 180
Drill - 10 x 231
Case - 8 x 211
Drill- 8x 254
Case - 6 x 245
Test -276
Pump -4000 + G P H
Total depth - 265
Pumped at 180
24 Hr Drawdown - 0
Water Good
C-11
I 3 I 1 I I I I B j APPENDDC D
SYNOPSIS 0 KEY CORRESPONDENCE
3 DURING CONSTRUCTION
I pound I I I 1 I I
On September 1 1973 the Contractor confirmed the
estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts
On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project
On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be
obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated
On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine
On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation
On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension
On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension
On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval
On October 15 1973 the Engineer returned the construction progress schedule for correction
On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim
D-I
On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor
On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project
On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25
On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter
On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents
On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract
On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised
On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading
On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule
On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request
On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period
D-2
On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report
On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material
On August 19 1974 the Contractor submitted an updated construction progress schedule for approval
On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases
On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor
On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor
On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project
On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course
On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country
On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course
On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions
On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule
On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress
D-3
On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract
On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana
On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor
On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion
On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations
On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases
On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season
On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees
On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections
On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project
On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course
On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project
On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract
D-4
October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request
On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor
On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620
On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project
On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y
completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense
On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted
On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project
On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim
On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic
On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor
On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976
D-5
On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time
On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares
On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material
On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500
On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor
On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula
On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana
OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected
On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road
On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road
Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10
On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued
On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced
On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091
On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091
Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued
D-6
I I IUUU U U UU I U
E PROJECT PHOTOGRAPHS
I IIIU U I
I Crushing Plants Surface Course
Pit 2A
Pug Mill Blending Surface Course
Pit 25A
II Surface Course
Pit 25A
UURYPTOERTOSE Pug Mil Blending
Road Reserve Bush Clearing
Km 242
U
Embankment Construction Km 287
IN
Road Construction Water Supply
Km 189
ROADWAY UNDER CONSTRUTION
II
E-2
Stockpiling Material Base Course
Special Embankment Construction Km 232
Watering of Embankment Km 257
ROADWAY UNDER CONSTRUCTION E-3
Culvert Assembly
Twin Culvert with Sand-Cement Pitching
Multiple Culverts with Sand-Cement Pitching
CULVERT INSTALLATIONS E- 4
AT Km 25
AT Km 194
Emergency Landing Strip Kra 2605
FINISHED ROADWAY E- 5
AT Km 286
AT Chobe By-Pass Junction Km 297
I Chobe By-Pass Road Near Ngoma Bridge
E-6FINISHED ROADWAY
i
S ANALYSIS 01 ANALYSIS
SIEVE - n -IIII- SIZ-MII- - IN i
It a s 1
Ue a -- e B
- 1 -I-[_I - I I I
6l51 10 8 $514 1 O is 05I I 21 8GANSZNILMTR OA RE Filo 9OA-1i 1DI UM F log S ILT AND CLAY SO ILS
GRAVEL nSAND
E--l I UNEASMPLEDEPlTH ELEV LL P1 KWKIPTION
A Composite 36 19 Crusher Run
Average of 116 Samples
B Composite 36 15 Surface Course Blend Average of 138 samples
H GHWA E SA 18 SILT ANDURCLA-SIL
3kgm Los Angeles Abrasion 28
Av agau Pnd AAd = 907 ITI UETT$-ABBTT-NcentcentARTNY-STRATTON
NEW YORK NY
REPUBLIC OF BOTSWANA
MINISTRY OF WORKS amp COM24UNICATIONSIT NINEERS1
I I MGIELI7 I 1 8AIIGIWAE
I
4
SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU
V 1 Oe 001l
- -r--I-I -- I
S E- -IN S
KI zz7llfl$zIIIti z I
low560
20
2
IGRAIN SIZE IN MILLIMETERS
COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS
GRAVEL SAND
SAMP DEPTH ELEV L P1 0NBERIIPTI
A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples
B Composit( 28 13 Surface Course Blend as Placed
Average of 85 samples
Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA
REPUBLIC OF BOTSWANA TI EfTTS-AIETT-NCARTY-STRATTOi ITTqTPI yen O WOVQ A n rn WTraTTn~lz ENGINEERS NEW YOlK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8
-D IUR IB
II SIEVE ANALYIIS 1411 I LYIlMll
[urn $11min - I I ITUSE IVV I - mampINimums1 -l0 n 001
a1 i 4 is s 0 aL w I 2 0665S a a 4 i 0i
-7sl
96---
I RI IE IN M IEER
CfliEI FIN g o au SIT SILFIN M40 5C o432 14593 ry B6
ver 7 samples
NUMBE NERPI
Ay I GRAIN SIZE IN MILLIMETR
5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND
A Q A- Aii dd d~A
IMUBEIRIIIIPIi
3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables
B Composit 26 13 Surface Course BlendU as Placed
Average of 79 samples
AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =
REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9
SIEVE ANALYSIS IMmv na awLYoia
SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I
I- 01 001
e---__
Ir1 -NIP_]
20
OA
$05 9 2
E
I
86543
I
7tN
2 1 65
_OAlEED t
5 2
FN
I
GRAIN SIZE IN MILLIMETERS
1 111I
NU BE GRAVEL
COARSE
I
MEDIUM
I SAND
FSILT AND CLAY SOILS
SAMPLE4 DEP EEY 1 SCBI1PTIORI
A
B
Composite
Composite
38
26
17
13
Crusher Run Basaltic Aggregate
Average of 176 samples
Surface Course Blend -s Placed Average of 58 samples
Average MDD = 2135 kgm Los Angeles Abrasion = 38
Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY
WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971
3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10
SIEVE ANIALYSIS lNVINI1111 ANALYSIS
I EV OPE IN - INI8 TOSIIEENN1-MLII
I
I - - i ii 0
I GRI SIZEto N OILS 1
I ANDLI IS
G VELIZE I
IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL
-APL ESN
DEPTH ELEY LL PI DESCRIPTIONNUSMBE
3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples
B Composite 26 13 Surface Course Blend as Placed Average of 58 samples
Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34
Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY
BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11
___ I
SIEVE ANALYSIS W11 ANKEm SIS
SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS
01 001
sodego
i i
U Ae
6 559 2 a65 3 2 1 6532 S
II GRAIN SIZE INMILLIMETERS
=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL
GRAVEL SN
I SAMPE DEPTH ELEV LL P)S DESCRIPTION
A omposite 28 10 Crusher Run
SAverage of 72 samples
B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples
Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20
REPUBLICUINISTRY 0OF OF
BOTSWANA WORKS amp COMMUNIGTIONS
TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12
I
SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM
-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U
I _
I1li
Ia _ Cu ve
N IC A11
IQI II
1 IG S IIIMETE
I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND
SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION
A Composite 34 15 Crusher Run Average of 74 samples
B Composite 29 12 Surface Course Blend as Placed
Average of 42 samples
MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15
REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA
ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N
NEW sy cKA
YORK NYT E-2 5 1 7 7
HIGHWAY PIT 32A Mwe FIGURE B-13
I I I I I I I I
APPENDIX C
I WATER WELL LOCATIONS
I I I I I I I I I
APPENDIX C WATER WELL LOCATIONS
WELL NO 3
Location Km 171 Lt of centerline 200 meters
Drill - 6 x 392
Ream - 8 x 92
Case - 6 x 84
Test - 24 Hours - 276
Pump 6000 G P H
Total depth - 392
Pumped at 150
24 Hr Drawdown - 3
Water Good
WELL NO 4
Location Km 175 - Lt of centerline 100 meters
Drill - 6 x 380
Ream - 8 x 82
Case - 7 x 82
Test - 276
Pump 1800 G P H
Total depth - 380
Pumped at 200
Drawdown 24 Hr - 100
Water Good
WELL NO 5 (Govt No 2436
Location Km 178 - Lt of centerline 115 meters
Test -276
Pump - 1400 G P H
Total depth - 160
Pumped at 140
24 Hr Drawdown - 60
Water Good C-1
WELL NO 6
Location Km 183 - Lt of centerline 60 meters
Drill - 6 x 436
Ream - 8 x 86
Case - 7 x 86
Test - 276
Pump - 500 G P H
Total depth - 436
Pumped at 250
24 Hr Drawdown - 150
Water Good
WELL NO 7 - (Govt No 2435)
Location Km 189 - Rt of centerline 100 meters
Clean amp Test
Pump - 6000 G P H
Pumped at 140
24 Hr Drawdown - 10
Water Good
WELL NO 14
Location Km 252 - Lt of centerline 100 meters
Drill - 6 x 250
Ream - 8 x 53
Case - 6 x 53
Test - 276
Pump - 6000 G P H
Total depth - 250
Pumped at 150
24 Hr Drawdown - 6
Water Good
C-2
WELL AT KM 256 MAINTENANCE FACILITY NO 3
Location Km 256 - Lt of centerline 200 meters
Depth - 100 feet
Water Rest Level - 42 feet
Depth Pump Set - 70 feet
24 Hr Test - 1800 G P H
WELL NO 15
Location Km 245 - Rt of centerline 40 meters
Drill - 6 x 260
Ream - 8 x 54
Case - 54
Test -276
Pump - 1500 G P H
Total depth - 260
Pumped at 200
24 Hr Drawdown - 140
Water Good
WELL NO 16 Location Km 236 -Rt of centerline 30 meters
Drill - 6 x 250
Ream - 8 x 22
Case - 6 x 22
Test - 276
Pump -6000 G P H
Total depth - 288
Pumped at 150
24 Hr Drawdown - 10
Water Good
C-3
WELL NO 17
Location Km 224 - Rt of centerline 30 meters
Drill - 10 x 89
Case - 8 x 85
Drill- 8x 43
Drill - 6 x 38
Case -6 x 132
Test - 276
Pump -2000 G P H
Total Depth - 170
Pumped at 100
24 Hr Drawdown - 11
Water Good
WELL NO 18
Location Km 217 - Lt of centerline 200 meters
Drill -i0 x 70
Case - 7 x 70
Drill - 7 x 52
Drill - 6 x 88
Case - 6 x 122
Test - 276
Pump 2400 G P H
Total depth - 210
Pumped at 200
24 Hr Drawdown - 140
Water Good
C-4
WELL NO 19
Location Km 213 - Lt of centerline 100 meters
Drill - 10 x 44
Case - 8 x 40
Drill - 8 x 76
Drill 6 x 130
Case - 6 x 120
Test - 276
Pump - 6000 G P H
Total depth - 210
Pumped at 60
24 Hr Drawdown - 10
Water Good
WELL NO 20
Location Km 143 - Rt of centerline 100 meters
Drill - 10 x 240
Case - 7 x 220
Drill -6 x 378
Case - 6 x 240
Case - 5 x 240
Test - 276
Pump -1500 G P H
Total depth - 618
Pumped at 460
24 Hr Drawdown - 105
Water slightly salty to taste but drinkable
C-5
WELL NO 23
Location Km 139 - Lt of centerline 100 meters
Drill - 12 x 290
Place amp Extract Case - 10 x 290
Drill - 8 x 30
Drill - 6 x 40
Case - 8 x 290
Case - 6 x 320
Test - 276
Pump - 1200 G P H
Total depth - 360
Pumped at 330
24 Hr Drawdown - 120
Water salty
WELL NO 24
Location Km 135 - Lt of centerline 500 meters
Drill - 12 x 270
Drill - 10 x 10
Case - 10 x 270
Drill -8 x 30
Case - 8 x 290
Case -6 x 310
Case - 5 x 320
Test -276
Pump -4000 +G P H
Total depth - 320
Pumped at 270
24 Hr Drawdown - 2
Water Salty
C-6
I
5
WELL KM 205 MAINTENANCE FACILITY NO 2
Location Km 105 - Lt of centerline 40 meters
Depth - 302 feet
~ Water Rest Level - 82 feet
Depth Pump Set - 150 feet
48 Hr Test - 3000 + G P H
WELL NO 26
Location Km 82 - Lt of centerline 100 meters
Drill - 12 x 145
5 -8 x145
Drill - 8 x 23
-Case
I Drill - 7 x 10
Case - 7 x 168
I Case - 6 x178
Test - 276
Pump - 1200 G P H
Total depth - 306
I Pumped at 140
24 Hr Drawdown - 35
I Water Good
C
I 0-7
WELL NO 27
Location Km 77 - Lt of centerline 100 meters
Drill - 12 x 174
Install amp Extract Case - 10 x 174
Case - 8 x 174
Drill - 9 x 68
Drill - 8 x 64
Case - 7 x 242
Case - 6 x 306
Test - 276
Pump - 4000 + G P H
Total Depth - 306
Pumpe at 240
24 Hr Drawdown - 0
Water Good
WELL NO 28- (Govt No 2465)
Location Km 63 - Rt of centerline 100 meters
Clean amp Extract Case - 300
Ream - 10 x 98
Ream - 8x 27
Ream - 6 x 12
Case - 8 x 98
Case - 6 x 125
Test - 276
Pump - 1000 + G P H
Total depth - 137
Pumped at 130
24 Hr Drawdown - 33
Water Good
C-8
WELL NO 30
Location Km 47 - Rt of centerline 400 meters
Drill - 12 x 132
Case - 10 x 89
Install amp Extract Case - 12 x 43
Drill - 10 x 117
Case - 7 x 242
Drill - 6 x 183
Install amp Extract Case - 6 x 408
Test - 276
Pump - 1000 G P H
Total depth - 408
Pumped at 160
24 Hr Drawdown - 77
Water Salty
WELL NO 31
- Lt of centerline 200 metersLocation Km 44
Drill - 12 x 110
Case - 10 x 100
Drill - 10 x 142
Case 8 x 142
Drill - 8 x 250
Case 7 x 392
Drill - 6 x 78
Test - 276
Pump - 3000 G P H
Total depth - 502
Pumped at 160
24 Hr Drawdown - 44
Water Salty
C-9
WELL NO 32
Location Km 42 - Lt of centerline 100 meters
Drill - 12 x 108
Case - 10 x 108
Drill - 10 x 212
Drill - 8 x 120
Case - 6 x 340
Case - 8 x 182
Test - 276
Pump - 3000 + G P H
Total depth - 448
Pumped at 160
24 Hr Drawdown - 20
Water Salty
WELL NO 34
Location Km 35 - Lt of centerline 200 meters
Drill - 12 x 230
Install amp Extract Case - 10 x 230
Drill - 8 x 30
Case -6 x 260
Drill - 6 x 160
Case -5 x 324
Case - 8 x 20
Test - 276
Pump -1000 + G P H
Total depth - 420
Pumped at 150
24 Hr Drawdown - 100
Water Salty
C-10
WELL NO 36
Location Km 7 N E along old track from Km 63
Drill - 12 x 180
Case - 10 x 180
Drill - 10 x 231
Case - 8 x 211
Drill- 8x 254
Case - 6 x 245
Test -276
Pump -4000 + G P H
Total depth - 265
Pumped at 180
24 Hr Drawdown - 0
Water Good
C-11
I 3 I 1 I I I I B j APPENDDC D
SYNOPSIS 0 KEY CORRESPONDENCE
3 DURING CONSTRUCTION
I pound I I I 1 I I
On September 1 1973 the Contractor confirmed the
estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts
On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project
On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be
obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated
On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine
On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation
On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension
On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension
On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval
On October 15 1973 the Engineer returned the construction progress schedule for correction
On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim
D-I
On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor
On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project
On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25
On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter
On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents
On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract
On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised
On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading
On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule
On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request
On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period
D-2
On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report
On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material
On August 19 1974 the Contractor submitted an updated construction progress schedule for approval
On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases
On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor
On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor
On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project
On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course
On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country
On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course
On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions
On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule
On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress
D-3
On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract
On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana
On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor
On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion
On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations
On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases
On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season
On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees
On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections
On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project
On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course
On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project
On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract
D-4
October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request
On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor
On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620
On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project
On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y
completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense
On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted
On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project
On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim
On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic
On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor
On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976
D-5
On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time
On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares
On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material
On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500
On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor
On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula
On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana
OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected
On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road
On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road
Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10
On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued
On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced
On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091
On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091
Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued
D-6
I I IUUU U U UU I U
E PROJECT PHOTOGRAPHS
I IIIU U I
I Crushing Plants Surface Course
Pit 2A
Pug Mill Blending Surface Course
Pit 25A
II Surface Course
Pit 25A
UURYPTOERTOSE Pug Mil Blending
Road Reserve Bush Clearing
Km 242
U
Embankment Construction Km 287
IN
Road Construction Water Supply
Km 189
ROADWAY UNDER CONSTRUTION
II
E-2
Stockpiling Material Base Course
Special Embankment Construction Km 232
Watering of Embankment Km 257
ROADWAY UNDER CONSTRUCTION E-3
Culvert Assembly
Twin Culvert with Sand-Cement Pitching
Multiple Culverts with Sand-Cement Pitching
CULVERT INSTALLATIONS E- 4
AT Km 25
AT Km 194
Emergency Landing Strip Kra 2605
FINISHED ROADWAY E- 5
AT Km 286
AT Chobe By-Pass Junction Km 297
I Chobe By-Pass Road Near Ngoma Bridge
E-6FINISHED ROADWAY
I
4
SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU
V 1 Oe 001l
- -r--I-I -- I
S E- -IN S
KI zz7llfl$zIIIti z I
low560
20
2
IGRAIN SIZE IN MILLIMETERS
COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS
GRAVEL SAND
SAMP DEPTH ELEV L P1 0NBERIIPTI
A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples
B Composit( 28 13 Surface Course Blend as Placed
Average of 85 samples
Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA
REPUBLIC OF BOTSWANA TI EfTTS-AIETT-NCARTY-STRATTOi ITTqTPI yen O WOVQ A n rn WTraTTn~lz ENGINEERS NEW YOlK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8
-D IUR IB
II SIEVE ANALYIIS 1411 I LYIlMll
[urn $11min - I I ITUSE IVV I - mampINimums1 -l0 n 001
a1 i 4 is s 0 aL w I 2 0665S a a 4 i 0i
-7sl
96---
I RI IE IN M IEER
CfliEI FIN g o au SIT SILFIN M40 5C o432 14593 ry B6
ver 7 samples
NUMBE NERPI
Ay I GRAIN SIZE IN MILLIMETR
5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND
A Q A- Aii dd d~A
IMUBEIRIIIIPIi
3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables
B Composit 26 13 Surface Course BlendU as Placed
Average of 79 samples
AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =
REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9
SIEVE ANALYSIS IMmv na awLYoia
SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I
I- 01 001
e---__
Ir1 -NIP_]
20
OA
$05 9 2
E
I
86543
I
7tN
2 1 65
_OAlEED t
5 2
FN
I
GRAIN SIZE IN MILLIMETERS
1 111I
NU BE GRAVEL
COARSE
I
MEDIUM
I SAND
FSILT AND CLAY SOILS
SAMPLE4 DEP EEY 1 SCBI1PTIORI
A
B
Composite
Composite
38
26
17
13
Crusher Run Basaltic Aggregate
Average of 176 samples
Surface Course Blend -s Placed Average of 58 samples
Average MDD = 2135 kgm Los Angeles Abrasion = 38
Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY
WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971
3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10
SIEVE ANIALYSIS lNVINI1111 ANALYSIS
I EV OPE IN - INI8 TOSIIEENN1-MLII
I
I - - i ii 0
I GRI SIZEto N OILS 1
I ANDLI IS
G VELIZE I
IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL
-APL ESN
DEPTH ELEY LL PI DESCRIPTIONNUSMBE
3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples
B Composite 26 13 Surface Course Blend as Placed Average of 58 samples
Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34
Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY
BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11
___ I
SIEVE ANALYSIS W11 ANKEm SIS
SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS
01 001
sodego
i i
U Ae
6 559 2 a65 3 2 1 6532 S
II GRAIN SIZE INMILLIMETERS
=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL
GRAVEL SN
I SAMPE DEPTH ELEV LL P)S DESCRIPTION
A omposite 28 10 Crusher Run
SAverage of 72 samples
B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples
Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20
REPUBLICUINISTRY 0OF OF
BOTSWANA WORKS amp COMMUNIGTIONS
TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12
I
SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM
-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U
I _
I1li
Ia _ Cu ve
N IC A11
IQI II
1 IG S IIIMETE
I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND
SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION
A Composite 34 15 Crusher Run Average of 74 samples
B Composite 29 12 Surface Course Blend as Placed
Average of 42 samples
MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15
REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA
ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N
NEW sy cKA
YORK NYT E-2 5 1 7 7
HIGHWAY PIT 32A Mwe FIGURE B-13
I I I I I I I I
APPENDIX C
I WATER WELL LOCATIONS
I I I I I I I I I
APPENDIX C WATER WELL LOCATIONS
WELL NO 3
Location Km 171 Lt of centerline 200 meters
Drill - 6 x 392
Ream - 8 x 92
Case - 6 x 84
Test - 24 Hours - 276
Pump 6000 G P H
Total depth - 392
Pumped at 150
24 Hr Drawdown - 3
Water Good
WELL NO 4
Location Km 175 - Lt of centerline 100 meters
Drill - 6 x 380
Ream - 8 x 82
Case - 7 x 82
Test - 276
Pump 1800 G P H
Total depth - 380
Pumped at 200
Drawdown 24 Hr - 100
Water Good
WELL NO 5 (Govt No 2436
Location Km 178 - Lt of centerline 115 meters
Test -276
Pump - 1400 G P H
Total depth - 160
Pumped at 140
24 Hr Drawdown - 60
Water Good C-1
WELL NO 6
Location Km 183 - Lt of centerline 60 meters
Drill - 6 x 436
Ream - 8 x 86
Case - 7 x 86
Test - 276
Pump - 500 G P H
Total depth - 436
Pumped at 250
24 Hr Drawdown - 150
Water Good
WELL NO 7 - (Govt No 2435)
Location Km 189 - Rt of centerline 100 meters
Clean amp Test
Pump - 6000 G P H
Pumped at 140
24 Hr Drawdown - 10
Water Good
WELL NO 14
Location Km 252 - Lt of centerline 100 meters
Drill - 6 x 250
Ream - 8 x 53
Case - 6 x 53
Test - 276
Pump - 6000 G P H
Total depth - 250
Pumped at 150
24 Hr Drawdown - 6
Water Good
C-2
WELL AT KM 256 MAINTENANCE FACILITY NO 3
Location Km 256 - Lt of centerline 200 meters
Depth - 100 feet
Water Rest Level - 42 feet
Depth Pump Set - 70 feet
24 Hr Test - 1800 G P H
WELL NO 15
Location Km 245 - Rt of centerline 40 meters
Drill - 6 x 260
Ream - 8 x 54
Case - 54
Test -276
Pump - 1500 G P H
Total depth - 260
Pumped at 200
24 Hr Drawdown - 140
Water Good
WELL NO 16 Location Km 236 -Rt of centerline 30 meters
Drill - 6 x 250
Ream - 8 x 22
Case - 6 x 22
Test - 276
Pump -6000 G P H
Total depth - 288
Pumped at 150
24 Hr Drawdown - 10
Water Good
C-3
WELL NO 17
Location Km 224 - Rt of centerline 30 meters
Drill - 10 x 89
Case - 8 x 85
Drill- 8x 43
Drill - 6 x 38
Case -6 x 132
Test - 276
Pump -2000 G P H
Total Depth - 170
Pumped at 100
24 Hr Drawdown - 11
Water Good
WELL NO 18
Location Km 217 - Lt of centerline 200 meters
Drill -i0 x 70
Case - 7 x 70
Drill - 7 x 52
Drill - 6 x 88
Case - 6 x 122
Test - 276
Pump 2400 G P H
Total depth - 210
Pumped at 200
24 Hr Drawdown - 140
Water Good
C-4
WELL NO 19
Location Km 213 - Lt of centerline 100 meters
Drill - 10 x 44
Case - 8 x 40
Drill - 8 x 76
Drill 6 x 130
Case - 6 x 120
Test - 276
Pump - 6000 G P H
Total depth - 210
Pumped at 60
24 Hr Drawdown - 10
Water Good
WELL NO 20
Location Km 143 - Rt of centerline 100 meters
Drill - 10 x 240
Case - 7 x 220
Drill -6 x 378
Case - 6 x 240
Case - 5 x 240
Test - 276
Pump -1500 G P H
Total depth - 618
Pumped at 460
24 Hr Drawdown - 105
Water slightly salty to taste but drinkable
C-5
WELL NO 23
Location Km 139 - Lt of centerline 100 meters
Drill - 12 x 290
Place amp Extract Case - 10 x 290
Drill - 8 x 30
Drill - 6 x 40
Case - 8 x 290
Case - 6 x 320
Test - 276
Pump - 1200 G P H
Total depth - 360
Pumped at 330
24 Hr Drawdown - 120
Water salty
WELL NO 24
Location Km 135 - Lt of centerline 500 meters
Drill - 12 x 270
Drill - 10 x 10
Case - 10 x 270
Drill -8 x 30
Case - 8 x 290
Case -6 x 310
Case - 5 x 320
Test -276
Pump -4000 +G P H
Total depth - 320
Pumped at 270
24 Hr Drawdown - 2
Water Salty
C-6
I
5
WELL KM 205 MAINTENANCE FACILITY NO 2
Location Km 105 - Lt of centerline 40 meters
Depth - 302 feet
~ Water Rest Level - 82 feet
Depth Pump Set - 150 feet
48 Hr Test - 3000 + G P H
WELL NO 26
Location Km 82 - Lt of centerline 100 meters
Drill - 12 x 145
5 -8 x145
Drill - 8 x 23
-Case
I Drill - 7 x 10
Case - 7 x 168
I Case - 6 x178
Test - 276
Pump - 1200 G P H
Total depth - 306
I Pumped at 140
24 Hr Drawdown - 35
I Water Good
C
I 0-7
WELL NO 27
Location Km 77 - Lt of centerline 100 meters
Drill - 12 x 174
Install amp Extract Case - 10 x 174
Case - 8 x 174
Drill - 9 x 68
Drill - 8 x 64
Case - 7 x 242
Case - 6 x 306
Test - 276
Pump - 4000 + G P H
Total Depth - 306
Pumpe at 240
24 Hr Drawdown - 0
Water Good
WELL NO 28- (Govt No 2465)
Location Km 63 - Rt of centerline 100 meters
Clean amp Extract Case - 300
Ream - 10 x 98
Ream - 8x 27
Ream - 6 x 12
Case - 8 x 98
Case - 6 x 125
Test - 276
Pump - 1000 + G P H
Total depth - 137
Pumped at 130
24 Hr Drawdown - 33
Water Good
C-8
WELL NO 30
Location Km 47 - Rt of centerline 400 meters
Drill - 12 x 132
Case - 10 x 89
Install amp Extract Case - 12 x 43
Drill - 10 x 117
Case - 7 x 242
Drill - 6 x 183
Install amp Extract Case - 6 x 408
Test - 276
Pump - 1000 G P H
Total depth - 408
Pumped at 160
24 Hr Drawdown - 77
Water Salty
WELL NO 31
- Lt of centerline 200 metersLocation Km 44
Drill - 12 x 110
Case - 10 x 100
Drill - 10 x 142
Case 8 x 142
Drill - 8 x 250
Case 7 x 392
Drill - 6 x 78
Test - 276
Pump - 3000 G P H
Total depth - 502
Pumped at 160
24 Hr Drawdown - 44
Water Salty
C-9
WELL NO 32
Location Km 42 - Lt of centerline 100 meters
Drill - 12 x 108
Case - 10 x 108
Drill - 10 x 212
Drill - 8 x 120
Case - 6 x 340
Case - 8 x 182
Test - 276
Pump - 3000 + G P H
Total depth - 448
Pumped at 160
24 Hr Drawdown - 20
Water Salty
WELL NO 34
Location Km 35 - Lt of centerline 200 meters
Drill - 12 x 230
Install amp Extract Case - 10 x 230
Drill - 8 x 30
Case -6 x 260
Drill - 6 x 160
Case -5 x 324
Case - 8 x 20
Test - 276
Pump -1000 + G P H
Total depth - 420
Pumped at 150
24 Hr Drawdown - 100
Water Salty
C-10
WELL NO 36
Location Km 7 N E along old track from Km 63
Drill - 12 x 180
Case - 10 x 180
Drill - 10 x 231
Case - 8 x 211
Drill- 8x 254
Case - 6 x 245
Test -276
Pump -4000 + G P H
Total depth - 265
Pumped at 180
24 Hr Drawdown - 0
Water Good
C-11
I 3 I 1 I I I I B j APPENDDC D
SYNOPSIS 0 KEY CORRESPONDENCE
3 DURING CONSTRUCTION
I pound I I I 1 I I
On September 1 1973 the Contractor confirmed the
estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts
On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project
On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be
obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated
On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine
On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation
On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension
On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension
On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval
On October 15 1973 the Engineer returned the construction progress schedule for correction
On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim
D-I
On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor
On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project
On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25
On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter
On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents
On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract
On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised
On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading
On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule
On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request
On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period
D-2
On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report
On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material
On August 19 1974 the Contractor submitted an updated construction progress schedule for approval
On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases
On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor
On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor
On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project
On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course
On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country
On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course
On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions
On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule
On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress
D-3
On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract
On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana
On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor
On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion
On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations
On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases
On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season
On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees
On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections
On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project
On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course
On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project
On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract
D-4
October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request
On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor
On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620
On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project
On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y
completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense
On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted
On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project
On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim
On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic
On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor
On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976
D-5
On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time
On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares
On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material
On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500
On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor
On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula
On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana
OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected
On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road
On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road
Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10
On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued
On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced
On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091
On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091
Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued
D-6
I I IUUU U U UU I U
E PROJECT PHOTOGRAPHS
I IIIU U I
I Crushing Plants Surface Course
Pit 2A
Pug Mill Blending Surface Course
Pit 25A
II Surface Course
Pit 25A
UURYPTOERTOSE Pug Mil Blending
Road Reserve Bush Clearing
Km 242
U
Embankment Construction Km 287
IN
Road Construction Water Supply
Km 189
ROADWAY UNDER CONSTRUTION
II
E-2
Stockpiling Material Base Course
Special Embankment Construction Km 232
Watering of Embankment Km 257
ROADWAY UNDER CONSTRUCTION E-3
Culvert Assembly
Twin Culvert with Sand-Cement Pitching
Multiple Culverts with Sand-Cement Pitching
CULVERT INSTALLATIONS E- 4
AT Km 25
AT Km 194
Emergency Landing Strip Kra 2605
FINISHED ROADWAY E- 5
AT Km 286
AT Chobe By-Pass Junction Km 297
I Chobe By-Pass Road Near Ngoma Bridge
E-6FINISHED ROADWAY
II SIEVE ANALYIIS 1411 I LYIlMll
[urn $11min - I I ITUSE IVV I - mampINimums1 -l0 n 001
a1 i 4 is s 0 aL w I 2 0665S a a 4 i 0i
-7sl
96---
I RI IE IN M IEER
CfliEI FIN g o au SIT SILFIN M40 5C o432 14593 ry B6
ver 7 samples
NUMBE NERPI
Ay I GRAIN SIZE IN MILLIMETR
5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND
A Q A- Aii dd d~A
IMUBEIRIIIIPIi
3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables
B Composit 26 13 Surface Course BlendU as Placed
Average of 79 samples
AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =
REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9
SIEVE ANALYSIS IMmv na awLYoia
SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I
I- 01 001
e---__
Ir1 -NIP_]
20
OA
$05 9 2
E
I
86543
I
7tN
2 1 65
_OAlEED t
5 2
FN
I
GRAIN SIZE IN MILLIMETERS
1 111I
NU BE GRAVEL
COARSE
I
MEDIUM
I SAND
FSILT AND CLAY SOILS
SAMPLE4 DEP EEY 1 SCBI1PTIORI
A
B
Composite
Composite
38
26
17
13
Crusher Run Basaltic Aggregate
Average of 176 samples
Surface Course Blend -s Placed Average of 58 samples
Average MDD = 2135 kgm Los Angeles Abrasion = 38
Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY
WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971
3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10
SIEVE ANIALYSIS lNVINI1111 ANALYSIS
I EV OPE IN - INI8 TOSIIEENN1-MLII
I
I - - i ii 0
I GRI SIZEto N OILS 1
I ANDLI IS
G VELIZE I
IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL
-APL ESN
DEPTH ELEY LL PI DESCRIPTIONNUSMBE
3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples
B Composite 26 13 Surface Course Blend as Placed Average of 58 samples
Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34
Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY
BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11
___ I
SIEVE ANALYSIS W11 ANKEm SIS
SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS
01 001
sodego
i i
U Ae
6 559 2 a65 3 2 1 6532 S
II GRAIN SIZE INMILLIMETERS
=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL
GRAVEL SN
I SAMPE DEPTH ELEV LL P)S DESCRIPTION
A omposite 28 10 Crusher Run
SAverage of 72 samples
B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples
Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20
REPUBLICUINISTRY 0OF OF
BOTSWANA WORKS amp COMMUNIGTIONS
TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12
I
SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM
-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U
I _
I1li
Ia _ Cu ve
N IC A11
IQI II
1 IG S IIIMETE
I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND
SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION
A Composite 34 15 Crusher Run Average of 74 samples
B Composite 29 12 Surface Course Blend as Placed
Average of 42 samples
MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15
REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA
ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N
NEW sy cKA
YORK NYT E-2 5 1 7 7
HIGHWAY PIT 32A Mwe FIGURE B-13
I I I I I I I I
APPENDIX C
I WATER WELL LOCATIONS
I I I I I I I I I
APPENDIX C WATER WELL LOCATIONS
WELL NO 3
Location Km 171 Lt of centerline 200 meters
Drill - 6 x 392
Ream - 8 x 92
Case - 6 x 84
Test - 24 Hours - 276
Pump 6000 G P H
Total depth - 392
Pumped at 150
24 Hr Drawdown - 3
Water Good
WELL NO 4
Location Km 175 - Lt of centerline 100 meters
Drill - 6 x 380
Ream - 8 x 82
Case - 7 x 82
Test - 276
Pump 1800 G P H
Total depth - 380
Pumped at 200
Drawdown 24 Hr - 100
Water Good
WELL NO 5 (Govt No 2436
Location Km 178 - Lt of centerline 115 meters
Test -276
Pump - 1400 G P H
Total depth - 160
Pumped at 140
24 Hr Drawdown - 60
Water Good C-1
WELL NO 6
Location Km 183 - Lt of centerline 60 meters
Drill - 6 x 436
Ream - 8 x 86
Case - 7 x 86
Test - 276
Pump - 500 G P H
Total depth - 436
Pumped at 250
24 Hr Drawdown - 150
Water Good
WELL NO 7 - (Govt No 2435)
Location Km 189 - Rt of centerline 100 meters
Clean amp Test
Pump - 6000 G P H
Pumped at 140
24 Hr Drawdown - 10
Water Good
WELL NO 14
Location Km 252 - Lt of centerline 100 meters
Drill - 6 x 250
Ream - 8 x 53
Case - 6 x 53
Test - 276
Pump - 6000 G P H
Total depth - 250
Pumped at 150
24 Hr Drawdown - 6
Water Good
C-2
WELL AT KM 256 MAINTENANCE FACILITY NO 3
Location Km 256 - Lt of centerline 200 meters
Depth - 100 feet
Water Rest Level - 42 feet
Depth Pump Set - 70 feet
24 Hr Test - 1800 G P H
WELL NO 15
Location Km 245 - Rt of centerline 40 meters
Drill - 6 x 260
Ream - 8 x 54
Case - 54
Test -276
Pump - 1500 G P H
Total depth - 260
Pumped at 200
24 Hr Drawdown - 140
Water Good
WELL NO 16 Location Km 236 -Rt of centerline 30 meters
Drill - 6 x 250
Ream - 8 x 22
Case - 6 x 22
Test - 276
Pump -6000 G P H
Total depth - 288
Pumped at 150
24 Hr Drawdown - 10
Water Good
C-3
WELL NO 17
Location Km 224 - Rt of centerline 30 meters
Drill - 10 x 89
Case - 8 x 85
Drill- 8x 43
Drill - 6 x 38
Case -6 x 132
Test - 276
Pump -2000 G P H
Total Depth - 170
Pumped at 100
24 Hr Drawdown - 11
Water Good
WELL NO 18
Location Km 217 - Lt of centerline 200 meters
Drill -i0 x 70
Case - 7 x 70
Drill - 7 x 52
Drill - 6 x 88
Case - 6 x 122
Test - 276
Pump 2400 G P H
Total depth - 210
Pumped at 200
24 Hr Drawdown - 140
Water Good
C-4
WELL NO 19
Location Km 213 - Lt of centerline 100 meters
Drill - 10 x 44
Case - 8 x 40
Drill - 8 x 76
Drill 6 x 130
Case - 6 x 120
Test - 276
Pump - 6000 G P H
Total depth - 210
Pumped at 60
24 Hr Drawdown - 10
Water Good
WELL NO 20
Location Km 143 - Rt of centerline 100 meters
Drill - 10 x 240
Case - 7 x 220
Drill -6 x 378
Case - 6 x 240
Case - 5 x 240
Test - 276
Pump -1500 G P H
Total depth - 618
Pumped at 460
24 Hr Drawdown - 105
Water slightly salty to taste but drinkable
C-5
WELL NO 23
Location Km 139 - Lt of centerline 100 meters
Drill - 12 x 290
Place amp Extract Case - 10 x 290
Drill - 8 x 30
Drill - 6 x 40
Case - 8 x 290
Case - 6 x 320
Test - 276
Pump - 1200 G P H
Total depth - 360
Pumped at 330
24 Hr Drawdown - 120
Water salty
WELL NO 24
Location Km 135 - Lt of centerline 500 meters
Drill - 12 x 270
Drill - 10 x 10
Case - 10 x 270
Drill -8 x 30
Case - 8 x 290
Case -6 x 310
Case - 5 x 320
Test -276
Pump -4000 +G P H
Total depth - 320
Pumped at 270
24 Hr Drawdown - 2
Water Salty
C-6
I
5
WELL KM 205 MAINTENANCE FACILITY NO 2
Location Km 105 - Lt of centerline 40 meters
Depth - 302 feet
~ Water Rest Level - 82 feet
Depth Pump Set - 150 feet
48 Hr Test - 3000 + G P H
WELL NO 26
Location Km 82 - Lt of centerline 100 meters
Drill - 12 x 145
5 -8 x145
Drill - 8 x 23
-Case
I Drill - 7 x 10
Case - 7 x 168
I Case - 6 x178
Test - 276
Pump - 1200 G P H
Total depth - 306
I Pumped at 140
24 Hr Drawdown - 35
I Water Good
C
I 0-7
WELL NO 27
Location Km 77 - Lt of centerline 100 meters
Drill - 12 x 174
Install amp Extract Case - 10 x 174
Case - 8 x 174
Drill - 9 x 68
Drill - 8 x 64
Case - 7 x 242
Case - 6 x 306
Test - 276
Pump - 4000 + G P H
Total Depth - 306
Pumpe at 240
24 Hr Drawdown - 0
Water Good
WELL NO 28- (Govt No 2465)
Location Km 63 - Rt of centerline 100 meters
Clean amp Extract Case - 300
Ream - 10 x 98
Ream - 8x 27
Ream - 6 x 12
Case - 8 x 98
Case - 6 x 125
Test - 276
Pump - 1000 + G P H
Total depth - 137
Pumped at 130
24 Hr Drawdown - 33
Water Good
C-8
WELL NO 30
Location Km 47 - Rt of centerline 400 meters
Drill - 12 x 132
Case - 10 x 89
Install amp Extract Case - 12 x 43
Drill - 10 x 117
Case - 7 x 242
Drill - 6 x 183
Install amp Extract Case - 6 x 408
Test - 276
Pump - 1000 G P H
Total depth - 408
Pumped at 160
24 Hr Drawdown - 77
Water Salty
WELL NO 31
- Lt of centerline 200 metersLocation Km 44
Drill - 12 x 110
Case - 10 x 100
Drill - 10 x 142
Case 8 x 142
Drill - 8 x 250
Case 7 x 392
Drill - 6 x 78
Test - 276
Pump - 3000 G P H
Total depth - 502
Pumped at 160
24 Hr Drawdown - 44
Water Salty
C-9
WELL NO 32
Location Km 42 - Lt of centerline 100 meters
Drill - 12 x 108
Case - 10 x 108
Drill - 10 x 212
Drill - 8 x 120
Case - 6 x 340
Case - 8 x 182
Test - 276
Pump - 3000 + G P H
Total depth - 448
Pumped at 160
24 Hr Drawdown - 20
Water Salty
WELL NO 34
Location Km 35 - Lt of centerline 200 meters
Drill - 12 x 230
Install amp Extract Case - 10 x 230
Drill - 8 x 30
Case -6 x 260
Drill - 6 x 160
Case -5 x 324
Case - 8 x 20
Test - 276
Pump -1000 + G P H
Total depth - 420
Pumped at 150
24 Hr Drawdown - 100
Water Salty
C-10
WELL NO 36
Location Km 7 N E along old track from Km 63
Drill - 12 x 180
Case - 10 x 180
Drill - 10 x 231
Case - 8 x 211
Drill- 8x 254
Case - 6 x 245
Test -276
Pump -4000 + G P H
Total depth - 265
Pumped at 180
24 Hr Drawdown - 0
Water Good
C-11
I 3 I 1 I I I I B j APPENDDC D
SYNOPSIS 0 KEY CORRESPONDENCE
3 DURING CONSTRUCTION
I pound I I I 1 I I
On September 1 1973 the Contractor confirmed the
estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts
On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project
On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be
obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated
On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine
On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation
On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension
On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension
On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval
On October 15 1973 the Engineer returned the construction progress schedule for correction
On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim
D-I
On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor
On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project
On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25
On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter
On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents
On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract
On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised
On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading
On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule
On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request
On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period
D-2
On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report
On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material
On August 19 1974 the Contractor submitted an updated construction progress schedule for approval
On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases
On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor
On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor
On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project
On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course
On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country
On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course
On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions
On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule
On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress
D-3
On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract
On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana
On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor
On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion
On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations
On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases
On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season
On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees
On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections
On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project
On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course
On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project
On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract
D-4
October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request
On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor
On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620
On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project
On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y
completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense
On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted
On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project
On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim
On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic
On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor
On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976
D-5
On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time
On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares
On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material
On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500
On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor
On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula
On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana
OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected
On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road
On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road
Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10
On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued
On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced
On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091
On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091
Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued
D-6
I I IUUU U U UU I U
E PROJECT PHOTOGRAPHS
I IIIU U I
I Crushing Plants Surface Course
Pit 2A
Pug Mill Blending Surface Course
Pit 25A
II Surface Course
Pit 25A
UURYPTOERTOSE Pug Mil Blending
Road Reserve Bush Clearing
Km 242
U
Embankment Construction Km 287
IN
Road Construction Water Supply
Km 189
ROADWAY UNDER CONSTRUTION
II
E-2
Stockpiling Material Base Course
Special Embankment Construction Km 232
Watering of Embankment Km 257
ROADWAY UNDER CONSTRUCTION E-3
Culvert Assembly
Twin Culvert with Sand-Cement Pitching
Multiple Culverts with Sand-Cement Pitching
CULVERT INSTALLATIONS E- 4
AT Km 25
AT Km 194
Emergency Landing Strip Kra 2605
FINISHED ROADWAY E- 5
AT Km 286
AT Chobe By-Pass Junction Km 297
I Chobe By-Pass Road Near Ngoma Bridge
E-6FINISHED ROADWAY
SIEVE ANALYSIS IMmv na awLYoia
SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I
I- 01 001
e---__
Ir1 -NIP_]
20
OA
$05 9 2
E
I
86543
I
7tN
2 1 65
_OAlEED t
5 2
FN
I
GRAIN SIZE IN MILLIMETERS
1 111I
NU BE GRAVEL
COARSE
I
MEDIUM
I SAND
FSILT AND CLAY SOILS
SAMPLE4 DEP EEY 1 SCBI1PTIORI
A
B
Composite
Composite
38
26
17
13
Crusher Run Basaltic Aggregate
Average of 176 samples
Surface Course Blend -s Placed Average of 58 samples
Average MDD = 2135 kgm Los Angeles Abrasion = 38
Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY
WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971
3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10
SIEVE ANIALYSIS lNVINI1111 ANALYSIS
I EV OPE IN - INI8 TOSIIEENN1-MLII
I
I - - i ii 0
I GRI SIZEto N OILS 1
I ANDLI IS
G VELIZE I
IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL
-APL ESN
DEPTH ELEY LL PI DESCRIPTIONNUSMBE
3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples
B Composite 26 13 Surface Course Blend as Placed Average of 58 samples
Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34
Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY
BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11
___ I
SIEVE ANALYSIS W11 ANKEm SIS
SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS
01 001
sodego
i i
U Ae
6 559 2 a65 3 2 1 6532 S
II GRAIN SIZE INMILLIMETERS
=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL
GRAVEL SN
I SAMPE DEPTH ELEV LL P)S DESCRIPTION
A omposite 28 10 Crusher Run
SAverage of 72 samples
B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples
Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20
REPUBLICUINISTRY 0OF OF
BOTSWANA WORKS amp COMMUNIGTIONS
TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12
I
SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM
-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U
I _
I1li
Ia _ Cu ve
N IC A11
IQI II
1 IG S IIIMETE
I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND
SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION
A Composite 34 15 Crusher Run Average of 74 samples
B Composite 29 12 Surface Course Blend as Placed
Average of 42 samples
MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15
REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA
ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N
NEW sy cKA
YORK NYT E-2 5 1 7 7
HIGHWAY PIT 32A Mwe FIGURE B-13
I I I I I I I I
APPENDIX C
I WATER WELL LOCATIONS
I I I I I I I I I
APPENDIX C WATER WELL LOCATIONS
WELL NO 3
Location Km 171 Lt of centerline 200 meters
Drill - 6 x 392
Ream - 8 x 92
Case - 6 x 84
Test - 24 Hours - 276
Pump 6000 G P H
Total depth - 392
Pumped at 150
24 Hr Drawdown - 3
Water Good
WELL NO 4
Location Km 175 - Lt of centerline 100 meters
Drill - 6 x 380
Ream - 8 x 82
Case - 7 x 82
Test - 276
Pump 1800 G P H
Total depth - 380
Pumped at 200
Drawdown 24 Hr - 100
Water Good
WELL NO 5 (Govt No 2436
Location Km 178 - Lt of centerline 115 meters
Test -276
Pump - 1400 G P H
Total depth - 160
Pumped at 140
24 Hr Drawdown - 60
Water Good C-1
WELL NO 6
Location Km 183 - Lt of centerline 60 meters
Drill - 6 x 436
Ream - 8 x 86
Case - 7 x 86
Test - 276
Pump - 500 G P H
Total depth - 436
Pumped at 250
24 Hr Drawdown - 150
Water Good
WELL NO 7 - (Govt No 2435)
Location Km 189 - Rt of centerline 100 meters
Clean amp Test
Pump - 6000 G P H
Pumped at 140
24 Hr Drawdown - 10
Water Good
WELL NO 14
Location Km 252 - Lt of centerline 100 meters
Drill - 6 x 250
Ream - 8 x 53
Case - 6 x 53
Test - 276
Pump - 6000 G P H
Total depth - 250
Pumped at 150
24 Hr Drawdown - 6
Water Good
C-2
WELL AT KM 256 MAINTENANCE FACILITY NO 3
Location Km 256 - Lt of centerline 200 meters
Depth - 100 feet
Water Rest Level - 42 feet
Depth Pump Set - 70 feet
24 Hr Test - 1800 G P H
WELL NO 15
Location Km 245 - Rt of centerline 40 meters
Drill - 6 x 260
Ream - 8 x 54
Case - 54
Test -276
Pump - 1500 G P H
Total depth - 260
Pumped at 200
24 Hr Drawdown - 140
Water Good
WELL NO 16 Location Km 236 -Rt of centerline 30 meters
Drill - 6 x 250
Ream - 8 x 22
Case - 6 x 22
Test - 276
Pump -6000 G P H
Total depth - 288
Pumped at 150
24 Hr Drawdown - 10
Water Good
C-3
WELL NO 17
Location Km 224 - Rt of centerline 30 meters
Drill - 10 x 89
Case - 8 x 85
Drill- 8x 43
Drill - 6 x 38
Case -6 x 132
Test - 276
Pump -2000 G P H
Total Depth - 170
Pumped at 100
24 Hr Drawdown - 11
Water Good
WELL NO 18
Location Km 217 - Lt of centerline 200 meters
Drill -i0 x 70
Case - 7 x 70
Drill - 7 x 52
Drill - 6 x 88
Case - 6 x 122
Test - 276
Pump 2400 G P H
Total depth - 210
Pumped at 200
24 Hr Drawdown - 140
Water Good
C-4
WELL NO 19
Location Km 213 - Lt of centerline 100 meters
Drill - 10 x 44
Case - 8 x 40
Drill - 8 x 76
Drill 6 x 130
Case - 6 x 120
Test - 276
Pump - 6000 G P H
Total depth - 210
Pumped at 60
24 Hr Drawdown - 10
Water Good
WELL NO 20
Location Km 143 - Rt of centerline 100 meters
Drill - 10 x 240
Case - 7 x 220
Drill -6 x 378
Case - 6 x 240
Case - 5 x 240
Test - 276
Pump -1500 G P H
Total depth - 618
Pumped at 460
24 Hr Drawdown - 105
Water slightly salty to taste but drinkable
C-5
WELL NO 23
Location Km 139 - Lt of centerline 100 meters
Drill - 12 x 290
Place amp Extract Case - 10 x 290
Drill - 8 x 30
Drill - 6 x 40
Case - 8 x 290
Case - 6 x 320
Test - 276
Pump - 1200 G P H
Total depth - 360
Pumped at 330
24 Hr Drawdown - 120
Water salty
WELL NO 24
Location Km 135 - Lt of centerline 500 meters
Drill - 12 x 270
Drill - 10 x 10
Case - 10 x 270
Drill -8 x 30
Case - 8 x 290
Case -6 x 310
Case - 5 x 320
Test -276
Pump -4000 +G P H
Total depth - 320
Pumped at 270
24 Hr Drawdown - 2
Water Salty
C-6
I
5
WELL KM 205 MAINTENANCE FACILITY NO 2
Location Km 105 - Lt of centerline 40 meters
Depth - 302 feet
~ Water Rest Level - 82 feet
Depth Pump Set - 150 feet
48 Hr Test - 3000 + G P H
WELL NO 26
Location Km 82 - Lt of centerline 100 meters
Drill - 12 x 145
5 -8 x145
Drill - 8 x 23
-Case
I Drill - 7 x 10
Case - 7 x 168
I Case - 6 x178
Test - 276
Pump - 1200 G P H
Total depth - 306
I Pumped at 140
24 Hr Drawdown - 35
I Water Good
C
I 0-7
WELL NO 27
Location Km 77 - Lt of centerline 100 meters
Drill - 12 x 174
Install amp Extract Case - 10 x 174
Case - 8 x 174
Drill - 9 x 68
Drill - 8 x 64
Case - 7 x 242
Case - 6 x 306
Test - 276
Pump - 4000 + G P H
Total Depth - 306
Pumpe at 240
24 Hr Drawdown - 0
Water Good
WELL NO 28- (Govt No 2465)
Location Km 63 - Rt of centerline 100 meters
Clean amp Extract Case - 300
Ream - 10 x 98
Ream - 8x 27
Ream - 6 x 12
Case - 8 x 98
Case - 6 x 125
Test - 276
Pump - 1000 + G P H
Total depth - 137
Pumped at 130
24 Hr Drawdown - 33
Water Good
C-8
WELL NO 30
Location Km 47 - Rt of centerline 400 meters
Drill - 12 x 132
Case - 10 x 89
Install amp Extract Case - 12 x 43
Drill - 10 x 117
Case - 7 x 242
Drill - 6 x 183
Install amp Extract Case - 6 x 408
Test - 276
Pump - 1000 G P H
Total depth - 408
Pumped at 160
24 Hr Drawdown - 77
Water Salty
WELL NO 31
- Lt of centerline 200 metersLocation Km 44
Drill - 12 x 110
Case - 10 x 100
Drill - 10 x 142
Case 8 x 142
Drill - 8 x 250
Case 7 x 392
Drill - 6 x 78
Test - 276
Pump - 3000 G P H
Total depth - 502
Pumped at 160
24 Hr Drawdown - 44
Water Salty
C-9
WELL NO 32
Location Km 42 - Lt of centerline 100 meters
Drill - 12 x 108
Case - 10 x 108
Drill - 10 x 212
Drill - 8 x 120
Case - 6 x 340
Case - 8 x 182
Test - 276
Pump - 3000 + G P H
Total depth - 448
Pumped at 160
24 Hr Drawdown - 20
Water Salty
WELL NO 34
Location Km 35 - Lt of centerline 200 meters
Drill - 12 x 230
Install amp Extract Case - 10 x 230
Drill - 8 x 30
Case -6 x 260
Drill - 6 x 160
Case -5 x 324
Case - 8 x 20
Test - 276
Pump -1000 + G P H
Total depth - 420
Pumped at 150
24 Hr Drawdown - 100
Water Salty
C-10
WELL NO 36
Location Km 7 N E along old track from Km 63
Drill - 12 x 180
Case - 10 x 180
Drill - 10 x 231
Case - 8 x 211
Drill- 8x 254
Case - 6 x 245
Test -276
Pump -4000 + G P H
Total depth - 265
Pumped at 180
24 Hr Drawdown - 0
Water Good
C-11
I 3 I 1 I I I I B j APPENDDC D
SYNOPSIS 0 KEY CORRESPONDENCE
3 DURING CONSTRUCTION
I pound I I I 1 I I
On September 1 1973 the Contractor confirmed the
estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts
On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project
On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be
obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated
On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine
On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation
On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension
On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension
On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval
On October 15 1973 the Engineer returned the construction progress schedule for correction
On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim
D-I
On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor
On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project
On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25
On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter
On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents
On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract
On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised
On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading
On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule
On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request
On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period
D-2
On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report
On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material
On August 19 1974 the Contractor submitted an updated construction progress schedule for approval
On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases
On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor
On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor
On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project
On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course
On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country
On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course
On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions
On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule
On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress
D-3
On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract
On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana
On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor
On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion
On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations
On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases
On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season
On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees
On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections
On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project
On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course
On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project
On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract
D-4
October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request
On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor
On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620
On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project
On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y
completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense
On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted
On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project
On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim
On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic
On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor
On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976
D-5
On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time
On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares
On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material
On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500
On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor
On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula
On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana
OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected
On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road
On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road
Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10
On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued
On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced
On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091
On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091
Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued
D-6
I I IUUU U U UU I U
E PROJECT PHOTOGRAPHS
I IIIU U I
I Crushing Plants Surface Course
Pit 2A
Pug Mill Blending Surface Course
Pit 25A
II Surface Course
Pit 25A
UURYPTOERTOSE Pug Mil Blending
Road Reserve Bush Clearing
Km 242
U
Embankment Construction Km 287
IN
Road Construction Water Supply
Km 189
ROADWAY UNDER CONSTRUTION
II
E-2
Stockpiling Material Base Course
Special Embankment Construction Km 232
Watering of Embankment Km 257
ROADWAY UNDER CONSTRUCTION E-3
Culvert Assembly
Twin Culvert with Sand-Cement Pitching
Multiple Culverts with Sand-Cement Pitching
CULVERT INSTALLATIONS E- 4
AT Km 25
AT Km 194
Emergency Landing Strip Kra 2605
FINISHED ROADWAY E- 5
AT Km 286
AT Chobe By-Pass Junction Km 297
I Chobe By-Pass Road Near Ngoma Bridge
E-6FINISHED ROADWAY
SIEVE ANIALYSIS lNVINI1111 ANALYSIS
I EV OPE IN - INI8 TOSIIEENN1-MLII
I
I - - i ii 0
I GRI SIZEto N OILS 1
I ANDLI IS
G VELIZE I
IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL
-APL ESN
DEPTH ELEY LL PI DESCRIPTIONNUSMBE
3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples
B Composite 26 13 Surface Course Blend as Placed Average of 58 samples
Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34
Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY
BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11
___ I
SIEVE ANALYSIS W11 ANKEm SIS
SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS
01 001
sodego
i i
U Ae
6 559 2 a65 3 2 1 6532 S
II GRAIN SIZE INMILLIMETERS
=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL
GRAVEL SN
I SAMPE DEPTH ELEV LL P)S DESCRIPTION
A omposite 28 10 Crusher Run
SAverage of 72 samples
B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples
Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20
REPUBLICUINISTRY 0OF OF
BOTSWANA WORKS amp COMMUNIGTIONS
TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY
BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12
I
SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM
-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U
I _
I1li
Ia _ Cu ve
N IC A11
IQI II
1 IG S IIIMETE
I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND
SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION
A Composite 34 15 Crusher Run Average of 74 samples
B Composite 29 12 Surface Course Blend as Placed
Average of 42 samples
MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15
REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA
ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N
NEW sy cKA
YORK NYT E-2 5 1 7 7
HIGHWAY PIT 32A Mwe FIGURE B-13
I I I I I I I I
APPENDIX C
I WATER WELL LOCATIONS
I I I I I I I I I
APPENDIX C WATER WELL LOCATIONS
WELL NO 3
Location Km 171 Lt of centerline 200 meters
Drill - 6 x 392
Ream - 8 x 92
Case - 6 x 84
Test - 24 Hours - 276
Pump 6000 G P H
Total depth - 392
Pumped at 150
24 Hr Drawdown - 3
Water Good
WELL NO 4
Location Km 175 - Lt of centerline 100 meters
Drill - 6 x 380
Ream - 8 x 82
Case - 7 x 82
Test - 276
Pump 1800 G P H
Total depth - 380
Pumped at 200
Drawdown 24 Hr - 100
Water Good
WELL NO 5 (Govt No 2436
Location Km 178 - Lt of centerline 115 meters
Test -276
Pump - 1400 G P H
Total depth - 160
Pumped at 140
24 Hr Drawdown - 60
Water Good C-1
WELL NO 6
Location Km 183 - Lt of centerline 60 meters
Drill - 6 x 436
Ream - 8 x 86
Case - 7 x 86
Test - 276
Pump - 500 G P H
Total depth - 436
Pumped at 250
24 Hr Drawdown - 150
Water Good
WELL NO 7 - (Govt No 2435)
Location Km 189 - Rt of centerline 100 meters
Clean amp Test
Pump - 6000 G P H
Pumped at 140
24 Hr Drawdown - 10
Water Good
WELL NO 14
Location Km 252 - Lt of centerline 100 meters
Drill - 6 x 250
Ream - 8 x 53
Case - 6 x 53
Test - 276
Pump - 6000 G P H
Total depth - 250
Pumped at 150
24 Hr Drawdown - 6
Water Good
C-2
WELL AT KM 256 MAINTENANCE FACILITY NO 3
Location Km 256 - Lt of centerline 200 meters
Depth - 100 feet
Water Rest Level - 42 feet
Depth Pump Set - 70 feet
24 Hr Test - 1800 G P H
WELL NO 15
Location Km 245 - Rt of centerline 40 meters
Drill - 6 x 260
Ream - 8 x 54
Case - 54
Test -276
Pump - 1500 G P H
Total depth - 260
Pumped at 200
24 Hr Drawdown - 140
Water Good
WELL NO 16 Location Km 236 -Rt of centerline 30 meters
Drill - 6 x 250
Ream - 8 x 22
Case - 6 x 22
Test - 276
Pump -6000 G P H
Total depth - 288
Pumped at 150
24 Hr Drawdown - 10
Water Good
C-3
WELL NO 17
Location Km 224 - Rt of centerline 30 meters
Drill - 10 x 89
Case - 8 x 85
Drill- 8x 43
Drill - 6 x 38
Case -6 x 132
Test - 276
Pump -2000 G P H
Total Depth - 170
Pumped at 100
24 Hr Drawdown - 11
Water Good
WELL NO 18
Location Km 217 - Lt of centerline 200 meters
Drill -i0 x 70
Case - 7 x 70
Drill - 7 x 52
Drill - 6 x 88
Case - 6 x 122
Test - 276
Pump 2400 G P H
Total depth - 210
Pumped at 200
24 Hr Drawdown - 140
Water Good
C-4
WELL NO 19
Location Km 213 - Lt of centerline 100 meters
Drill - 10 x 44
Case - 8 x 40
Drill - 8 x 76
Drill 6 x 130
Case - 6 x 120
Test - 276
Pump - 6000 G P H
Total depth - 210
Pumped at 60
24 Hr Drawdown - 10
Water Good
WELL NO 20
Location Km 143 - Rt of centerline 100 meters
Drill - 10 x 240
Case - 7 x 220
Drill -6 x 378
Case - 6 x 240
Case - 5 x 240
Test - 276
Pump -1500 G P H
Total depth - 618
Pumped at 460
24 Hr Drawdown - 105
Water slightly salty to taste but drinkable
C-5
WELL NO 23
Location Km 139 - Lt of centerline 100 meters
Drill - 12 x 290
Place amp Extract Case - 10 x 290
Drill - 8 x 30
Drill - 6 x 40
Case - 8 x 290
Case - 6 x 320
Test - 276
Pump - 1200 G P H
Total depth - 360
Pumped at 330
24 Hr Drawdown - 120
Water salty
WELL NO 24
Location Km 135 - Lt of centerline 500 meters
Drill - 12 x 270
Drill - 10 x 10
Case - 10 x 270
Drill -8 x 30
Case - 8 x 290
Case -6 x 310
Case - 5 x 320
Test -276
Pump -4000 +G P H
Total depth - 320
Pumped at 270
24 Hr Drawdown - 2
Water Salty
C-6
I
5
WELL KM 205 MAINTENANCE FACILITY NO 2
Location Km 105 - Lt of centerline 40 meters
Depth - 302 feet
~ Water Rest Level - 82 feet
Depth Pump Set - 150 feet
48 Hr Test - 3000 + G P H
WELL NO 26
Location Km 82 - Lt of centerline 100 meters
Drill - 12 x 145
5 -8 x145
Drill - 8 x 23
-Case
I Drill - 7 x 10
Case - 7 x 168
I Case - 6 x178
Test - 276
Pump - 1200 G P H
Total depth - 306
I Pumped at 140
24 Hr Drawdown - 35
I Water Good
C
I 0-7
WELL NO 27
Location Km 77 - Lt of centerline 100 meters
Drill - 12 x 174
Install amp Extract Case - 10 x 174
Case - 8 x 174
Drill - 9 x 68
Drill - 8 x 64
Case - 7 x 242
Case - 6 x 306
Test - 276
Pump - 4000 + G P H
Total Depth - 306
Pumpe at 240
24 Hr Drawdown - 0
Water Good
WELL NO 28- (Govt No 2465)
Location Km 63 - Rt of centerline 100 meters
Clean amp Extract Case - 300
Ream - 10 x 98
Ream - 8x 27
Ream - 6 x 12
Case - 8 x 98
Case - 6 x 125
Test - 276
Pump - 1000 + G P H
Total depth - 137
Pumped at 130
24 Hr Drawdown - 33
Water Good
C-8
WELL NO 30
Location Km 47 - Rt of centerline 400 meters
Drill - 12 x 132
Case - 10 x 89
Install amp Extract Case - 12 x 43
Drill - 10 x 117
Case - 7 x 242
Drill - 6 x 183
Install amp Extract Case - 6 x 408
Test - 276
Pump - 1000 G P H
Total depth - 408
Pumped at 160
24 Hr Drawdown - 77
Water Salty
WELL NO 31
- Lt of centerline 200 metersLocation Km 44
Drill - 12 x 110
Case - 10 x 100
Drill - 10 x 142
Case 8 x 142
Drill - 8 x 250
Case 7 x 392
Drill - 6 x 78
Test - 276
Pump - 3000 G P H
Total depth - 502
Pumped at 160
24 Hr Drawdown - 44
Water Salty
C-9
WELL NO 32
Location Km 42 - Lt of centerline 100 meters
Drill - 12 x 108
Case - 10 x 108
Drill - 10 x 212
Drill - 8 x 120
Case - 6 x 340
Case - 8 x 182
Test - 276
Pump - 3000 + G P H
Total depth - 448
Pumped at 160
24 Hr Drawdown - 20
Water Salty
WELL NO 34
Location Km 35 - Lt of centerline 200 meters
Drill - 12 x 230
Install amp Extract Case - 10 x 230
Drill - 8 x 30
Case -6 x 260
Drill - 6 x 160
Case -5 x 324
Case - 8 x 20
Test - 276
Pump -1000 + G P H
Total depth - 420
Pumped at 150
24 Hr Drawdown - 100
Water Salty
C-10
WELL NO 36
Location Km 7 N E along old track from Km 63
Drill - 12 x 180
Case - 10 x 180
Drill - 10 x 231
Case - 8 x 211
Drill- 8x 254
Case - 6 x 245
Test -276
Pump -4000 + G P H
Total depth - 265
Pumped at 180
24 Hr Drawdown - 0
Water Good
C-11
I 3 I 1 I I I I B j APPENDDC D
SYNOPSIS 0 KEY CORRESPONDENCE
3 DURING CONSTRUCTION
I pound I I I 1 I I
On September 1 1973 the Contractor confirmed the
estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts
On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project
On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be
obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated
On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine
On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation
On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension
On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension
On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval
On October 15 1973 the Engineer returned the construction progress schedule for correction
On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim
D-I
On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor
On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project
On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25
On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter
On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents
On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract
On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised
On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading
On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule
On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request
On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period
D-2
On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report
On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material
On August 19 1974 the Contractor submitted an updated construction progress schedule for approval
On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases
On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor
On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor
On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project
On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course
On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country
On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course
On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions
On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule
On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress
D-3
On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract
On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana
On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor
On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion
On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations
On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases
On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season
On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees
On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections
On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project
On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course
On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project
On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract
D-4
October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request
On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor
On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620
On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project
On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y
completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense
On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted
On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project
On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim
On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic
On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor
On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976
D-5
On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time
On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares
On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material
On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500
On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor
On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula
On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana
OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected
On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road
On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road
Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10
On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued
On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced
On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091
On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091
Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued
D-6
I I IUUU U U UU I U
E PROJECT PHOTOGRAPHS
I IIIU U I
I Crushing Plants Surface Course
Pit 2A
Pug Mill Blending Surface Course
Pit 25A
II Surface Course
Pit 25A
UURYPTOERTOSE Pug Mil Blending
Road Reserve Bush Clearing
Km 242
U
Embankment Construction Km 287
IN
Road Construction Water Supply
Km 189
ROADWAY UNDER CONSTRUTION
II
E-2
Stockpiling Material Base Course
Special Embankment Construction Km 232
Watering of Embankment Km 257
ROADWAY UNDER CONSTRUCTION E-3
Culvert Assembly
Twin Culvert with Sand-Cement Pitching
Multiple Culverts with Sand-Cement Pitching
CULVERT INSTALLATIONS E- 4
AT Km 25
AT Km 194
Emergency Landing Strip Kra 2605
FINISHED ROADWAY E- 5
AT Km 286
AT Chobe By-Pass Junction Km 297
I Chobe By-Pass Road Near Ngoma Bridge
E-6FINISHED ROADWAY